Looking back


Since the time when the Web lab was founded (1995) by Ulf-Dietrich Reips many Web experiments were run here for data collection. These "historical" Web experiments are listed below. You'll be able to participate in some of these. Maybe you are a reader of a publication involving a Web experiment (some more are listed here, download a reprint of a paper on "Standards for Internet-based experimenting" [PDF, 124kb]), and you would like to put yourself in the position of a participant. For a reader being able to do this makes our science much more transparent.
This e-science lab is maintained by a single person without a designated lab budget. Currently the lab is visited by about 3000 people a month. You can look at some not perfectly reliable cumulated statistics for the two main pages (English and German version combined).
The description of Web experiments listed below is more or less elaborate and will be completed whenever I find time to do this ;-). Questions and commentaries are welcome!

A "thank you" goes out to external experimenters, who enriched the Web Experimental Psychology Lab by realizing their Web experiments in this lab.

Ulf-Dietrich Reips




<--This was the first between subjects experiment on the World Wide Web (yes yes, with CGI powered random distribution of participants to experimental conditions and all). It was carried out in this lab between September 1995 and September 1996.
Feel free to participate and experience a subject's view - however, now you will not be able to win a prize anymore. Takes about 30 to 45 minutes. Look at a few figures of results. German publication available upon request.

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<--This one is a classical experiment (a variation of the Wason selection task). It was the second Web experiment I put up in this lab, back in 1995. The experimental manipulation, which dealt with the underlying causal structure in the cover story, was only realized in the German version. The hypothesis was confirmed.
Participation in this Web experiment took only a few minutes. However, until today this Web experiment has the questionable honor of being the longest running Web experiment in history ;-). It was online from September 1995 until May 1999. For a long period this experiment ran in the background on my desktop computer, the legendary Centris 610, a Macintosh with the internet address 134.2.133.25 (at.pi.uni-tuebingen.de). Later a second address was added that belonged to a PowerMac 7100AV with the IP 134.2.133.33 (funky.pi.uni-tuebingen.de). This helped me a lot, as it had turned out to be quite seducing for my attention to see the running logfile in the background. Participation increased steadily, and it jumped when a German national magazine ("Der Spiegel") put the Web Experimental Psychology Lab on its top ten list for four consecutive weeks, beginning in February 1996. I had a hard time concentrating on the foreground of my screen, where my dissertation and our project work were waiting for me ;-).


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<--This experiment has been running since 7/22/97 under the responsibility of M. Eisenhauer, Trier.

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<--An investigation on impression formation by carrying out interviews with virtual interviewees. Responsible for this Web experiment is: D. Janetzko, Freiburg. Linked to this lab on 10/7/97.
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<--You had to use ActiveX to be a candidate for this experiment on the Müller-Lyer illusion. Responsible for this web site is: R. Plant, York. Linked to this lab on 10/7/97.

Error message? Then please try again at a different time or contact R. Plant.



<--Since 5/11/97: Possibly the first Java based perception experiment on the WWW. Responsible is: H. Hecht, Bielefeld. You'll need a Java capable browser and Java turned on!

Error message? Then please try again at a different time or contact H. Hecht.



<--An experiment by three of my students (Alex de Spindler, Christoph Guntern & Gregor Neuhardt), who wanted to know how memory varies with levels of distraction. Duration: ca. 10 minutes. Sorry: Internet Explorer was required. Linked to this lab on 6/26/98, put in this section on 10/6/98.

Error message? Then please try again at a different time or contact A. de Spindler.



<-- "Range8", an experiment on tradeoffs between costs and benefits of tests. The author (Jonathan Baron) and his students always have a few experiments online. They say they will soon provide documentation for the experiment that was run in this lab. Linked to the lab on 6/25/98, put in this section on 10/6/98.

Error message? Then please try again at a different time or contact J. Baron.



<--An experiment by Ulrik Dahl, who used it for his thesis in psycho-economics. Truly multilingual, since it was available in English, German, Spanish, French and Danish! Duration: about ten minutes. Linked to the Web lab on 6/25/98, put in this section on 10/6/98.

Error message? Then please try again at a different time or contact U.Dahl.



<-- Here you could have been lucky for about 15 to 20 minutes in an experiment by Christoph Weidemann. Linked to this lab on 2/15/99, archived on 5/4/99. Documentation will follow soon.

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<--An experiment by our project group, on the influence of degree of anonymity, financial incentive, and other factors on socially desirable and neutral time reporting, and on drop-out rate. Results from this Web experiment were presented at GOR '99 and APA conferences. A pdf formatted draft is available as the Frick et al. publication in the WWW book Current Internet Science. This Web experiment was online 5/4 to 6/3, 1999. German and English publications available upon request.

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<--(7/4/99 to 10/16/99) A study by Bettina Laugwitz. It took ca. 15 minutes, and one could win one of five prizes. JAVA and Netscape 4.0 - 4.5 / Internet Explorer 3.* were required. Bettina now offers some information about her Web experiment.


<-- A study on taxes. Added 02/12/00, conducted by Christoph Neuhaus as part of his entry thesis. Participation took only 3 to 5 minutes. Full version still online. Have fun! German publication available upon request.

Error message? Then please try again at a different time and contact Christoph Neuhaus.



<-- A Jury Decision Making Study about Criminal Sentencing by Kevin O'Neil, Law and Psychology Program, University of Nebraska--Lincoln. This Web experiment took about 20-30 minutes to complete and was tailored to US residents only. (Added 02/12/00, archived 07/04/00.)

Error message? Then please try again at a different time and contact Kevin O'Neil.



<--An experiment on visual encoding of environments. To participate in this experiment by the Max-Planck Institute for Biological Cybernetics (Tübingen, Germany) you will need java and a VRML plugin (instructions are provided). Linked to this lab on 6/19/98. Responsible: G. Givaty.

Error message? Then please try again at a different time or contact G. Givaty.



<--Is it a vegetable? A quick reaction time Web experiment on category decisions by Ulf-D. Reips, Vinzenz Morger, and Beat Meier. Participation took about five and a half minutes (325 seconds :-) on average. Enjoy! [German publication available upon request.]

Error message? Then please try again at a different time and contact Ulf-Dietrich Reips.



<--A study on opening statements of a civil trial by Kevin O'Neil, Law and Psychology Program, University of Nebraska--Lincoln. This Web experiment took about 15-20 minutes to complete. In the Web lab from 02-15-01 to 06-29-01.

Error message? Then please try again at a different time and contact Kevin O'Neil.



<--Have a go at category learning: Seeing the leaves from the trees, by Rebecca Lawson, University of Liverpool, UK. To participate you need to enable Java in your Web browser! Began June-29-01, ended Aug-07-01.

Error message? Then please try again at a different time and contact Rebecca Lawson.



<--A study on "witnessing a robbery" by Bem Allen, Western Illinois University. Duration: ca. 20 minutes. Data were sent to Bem by E-mail. In the Web lab from 08/10/00 to 01/10/01.

Error message? Then please try again at a different time and contact Bem Allen.



<--Recognizing emotions in assembled face images. By Irene Rohrer, Ulf-Dietrich Reips, Universität Zürich, und Bruno Preilowski, Universität Tübingen. Participation took about 10-15 minutes. [Online 03/16/01-03/09/02].

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<--(Currently no link!) An arcade game style Web experiment on attention allocation by Greg Billock, California Institute of Technology. To participate you need to enable Java in your Web browser!

Error message? Then please try again at a different time and contact Greg Billock.



<--(Currently no link!) A study on "Mitigating Factors in Death Penalty Trials" by Kevin O'Neil, Law and Psychology Program, University of Nebraska--Lincoln. This Web experiment took about 25 minutes to complete and all questions have to be answered. U.S. citizens only were eligible for a drawing from a lottery. To participate you needed to enable Javascript and cookies in your Web browser! 06-29-01 - Dec-18-02.

Error message? Then please try again at a different time and contact Kevin O'Neil.



<--(Currently no link!) A study on "Civil Jury Damage Awards" by Brian Bornstein, Law and Psychology Program, University of Nebraska--Lincoln. This Web experiment takes about 60 minutes to complete and all questions have to be answered. U.S. citizens only will be eligible for a drawing from a lottery. To participate you need to enable Javascript and cookies in your Web browser! June-29-01 - Dec-18-02.

Error message? Then please try again at a different time and contact Brian Bornstein.



<-- Preferences in Human Spatial Behaviour are at the aim of this Web experiment byJohn Christie and Cathy MacKay at Dalhousie University, Halifax, Canada. To participate you need to enable Java in your Web browser! - Dec-18-02

Error message? Then please try again at a different time and contact Cathy MacKay.



<-- (Currently no link!)A study on online impression formation, by Jeff Kretschmar, Miami University. Part of Chris Wolfe's Miami University Web-Based Psychology Laboratory. The study took about 10 minutes to complete. Oct-02-01 - Dec-18-02.

Error message? Then please try again at a different time and contact Jeff Kretschmar.



<-- An experiment on mimic expression, by Gernot Horstmann, University of Bielefeld. Participation took about 3-5 minutes. Oct-02-01 - Dec-18-02.

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<-- (Currently no link!) This experiment by Mark Steyvers, Stanford University, and Eric-Jan Wagenmakers, Northwestern University,is about causal learning and inference and involves "mind reading aliens". The score in this experiment is posted immediately in a hall of fame. To participate you needed Javascript on Internet Explorer 5 and higher! Participation took about 10-15 minutes. Aug-07-01 - Dec-18-02.

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Mark Steyvers.



<-- The objective of this project is to investigate new forms of interaction and navigational techniques in mobile devices for human computer interaction. By Markus Eisenhauer & Johan de Heer, FIT Fraunhofer Institut angewandte Informationstechnik, Sankt Augustin und Telematica Insituut in Enschede. Duration about 20 Min. Fast Internet connection recommended 04.12.2002 - 21.02.2003.

Error message? Then please try again at a different time and contact Markus Eisenhauer & Johan de Heer.



<-- Estimates and Attitudes. Took about 7 minutes to complete. By Eric Igou, Michael Schober, Michael See & Patrick Ehlen, New School University (New York). Internet Explorer 5 or higher required! 02/14 - 06/20/2003.

Error message? Then please try again at a different time and contact Eric Igou, Michael Schober, Michael See & Patrick Ehlen.



<-- Perception of Health Risk: Examines people's perceptions of their risks of developing certain health problems such as heart disease. By Dan Mason, University of Cambridge. Took 5 to 10 minutes to complete. Start: 01/23 - 06/20/03.

Error message? Then please try again at a different time and contact Dan Mason.



<-- Learn about diseases and help science by taking part. Duration: about 30 minutes. By Julia Wacker & Ulf-Dietrich Reips, Universities of Zürich and Tübingen. By taking part you will help with a Master's thesis! 01/17. - 06/20/2003.

Error message? Then please try again at a different time and contact Julia Wacker & Ulf-Dietrich Reips.



<-- A study on environmental decision making. You will be presented with environment-related scenarios and asked to make decisions. At the end, you will be provided with more information about this experiment. Participation takes about 10-15 minutes. By Carmen Tanner, Northwestern University, Evanston/IL, USA. The following Internet browsers (or newer versions) are recommended: Internet Explorer 4.5, Netscape 6, Opera 6, Mozilla 1, Konqueror 3. 11/21/2002-06/20/2003.

Error message? Then please try again at a different time and contact Carmen Tanner.



<-- Solar Energy Group Game. An exciting group game about solar energy. Duration: 30 Minutes. Win up to 24 Euro. By Wernher M. Brucks, Bettina Ryf, and Ulf-Dietrich Reips, University of Zurich. Really cool :-D 11/08/2002-06/20/2003.

Error message? Then please try again at a different time and contact Wernher M. Brucks, Bettina Ryf, and Ulf-Dietrich Reips.



Personality and Symptomatology on the Web. By Jonathan Oakman, Lena Quilty, Evan Risko, University of Waterloo, Waterloo, Ontario, Canada. Takes about 25 minutes to complete. 06/05/2003-08/09/2003.

Error message? Then please try again at a different time and contact Jonathan Oakman, Lena Quilty, Evan Risko.



The cup. Simply answer one choice question. By Ulf-Dietrich Reips, University of Zurich. This study takes 2 minutes only!. Start: 26.08.2003, Archived: 08.09.2003.

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<-- To see or not to see? An experiment on perception, decision processes, and methodological issues. By Andrea Frick*, Christoph Neuhaus*, and Tom Buchanan**, *University of Zurich, **University of Westminster. 12/16/2002 - 12/17/2003.

Error message? Then please try again at a different time and contact Andrea Frick*, Christoph Neuhaus*, and Tom Buchanan**.



<-- Adding numbers. By Vinzenz Morger, University of Zürich. Participation took about 10-15 minutes. [03/09/02-12/17/03]

Error message? Then please try again at a different time and contact Vinzenz Morger.



iTest: An Investigation of Eyewitness Testimony By Andy Brand, Cardiff University. Java required, may not work. 15.01.2002 - 17.12.2003.

Error message? Then please try again at a different time and contact Andy Brand.



<--Online test on logical thinking - with individual feedback of the results. Duration was 5 minutes. Three monetary prizes were awarded. Responsible: Jochen Musch, Birgit Naumer, and Christoph Klauer, University of Bonn (then). Moved to archive 05/06/04

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<--A study on perception by Christoph Neuhaus, Ulf-Dietrich Reips, and Adrian Schwaninger, at University of Zurich, Switzerland. Participation took about 10 minutes. Second version: 06/29/01-05/06/04.

Error message? Then please try again at a different time and contact Christoph Neuhaus.



<-- Number estimation experiment (added 05/19/00, moved to archive 05/06/04) by Thomas Dudey, Adaptive Behavior and Cognition (ABC) group, Max Planck Institute for Human Development. Duration: about 5-10 minutes.

Error message? Then please try again at a different time and contact Thomas Dudey.



Instant Messaging - Interviews. Answer questions about participating in interviews which are conducted via Instant Messaging programs ('bots'). Duration: ca. 10 minutes. By Stefan Stieger, University of Vienna. . 03.06.2003-06.05.2004.

Error message? Then please try again at a different time and contact Stefan Stieger.



<-- Relationships between Men and Women and Sexual Violence. This survey investigated the opinions of men about relationships between men and woman and sexual violence in contemporary society. Participation took about 10 to 15 minutes. Deadline for this survey was Friday May 14th 2004. By Manuela Thomä, University of Kent at Canterbury, UK. Male Participants only! 27.04.2004-12.07.2004.

Error message? Then please try again at a different time and contact Manuela Thomä.



<-- About learning. A fascinating study about learning of ficticious blood substances and diseases in animals. Duration: 20-30 minutes. By Ulf-Dietrich Reips* & Michael Waldmann**, *University of Zürich, **University of Göttingen. Cool design! 17.12.2003-12.07.2004.

Error message? Then please try again at a different time and contact Ulf-Dietrich Reips* & Michael Waldmann**.



<-- Health and Personality Processes: Links Explored (HAPPLE). A secure and encrypted health and personality questionnaire study. A free feedback report is provided on the personality section. By Gareth Hagger-Johnson and Dr. Martha Whiteman, The University of Edinburgh. U.K. specific. 08.08.-07.11.2004.

Error message? Then please try again at a different time and contact Gareth Hagger-Johnson and Dr. Martha Whiteman.



<-- The Island of Knights and Knaves. Reasoning puzzles about probabilty of truth. By Shira Elqayam, Simon Handley, Jonathan Evans, University of Plymouth, UK. Duration: 20-40 minutes. 24.05.-07.11.2004.

Error message? Then please try again at a different time and contact Shira Elqayam, Simon Handley, Jonathan Evans.



<-- Environmental Decision Making. This is a study linking attitudes and moral values with environmental decision making. Duration: About 10-15 minutes. By Carmen Tanner, Northwestern University. 08.03.-07.11.2004.

Error message? Then please try again at a different time and contact Carmen Tanner.



<-- Perception of Health Risk II. Examined how people respond to hypothetical information about certain health risks. By Dan Mason, University of Cambridge. Took 5 mins. 21.07.-25.11.2004.

Error message? Then please try again at a different time and contact Dan Mason.



<-- You could "test your memory" in this study by Bem Allen. Duration was ca. 20 minutes. Data were sent to Bem by E-mail. Added to this Web lab on 10.08.2000, archived 25.11.2004.

Error message? Then please try again at a different time and contact Bem Allen.



<-- What's the cause? Get into nuclear physics and find out how different molecules influence each other. Duration: 15 minutes By York Hagmayer, Universität Göttingen. Start: 02. 07. 2004.

Error message? Then please try again at a different time and contact York Hagmayer.



<-- How do we perceive social interactions? Schematic drawings featuring two people interacting will be presented to you. For each of 10 drawings, participants were asked to pick from 4 answer alternatives the one they thought best describes the drawing. They were also asked to give their opinion about a few statements. Duration: about 10 minutes. Participants could win one of three prizes: 50$, 30$, or 20$. By Marianne Schmid Mast & Ulf-Dietrich Reips, University of Zurich. Quick and fun! In the Web Lab from 03.01.2003-26.02.2005.

Error message? Then please try again at a different time and contact Marianne Schmid Mast & Ulf-Dietrich Reips.



<-- What Women (or Men) Want: Friendship, Dating and Marriage Choices. This experiment concerned how people form impressions of another person in making the decision to choose him/her as a friend, date, or marriage partner. By Daniel Arkkelin, Valparaiso University. Took about 15 minutes. 10/19/2002-02/26/2005.

Error message? Then please try again at a different time and contact Daniel Arkkelin.



<-- 2004 US Presidential Election. The goal of this project was to better understand people's attitudes toward the outcome of the recent US Presidential Election. By Alison Lenton, University of Edinburgh. 23.11.2004-26.02.2005.

Error message? Then please try again at a different time and contact Alison Lenton.



<-- Perception of Health Risks III. This experiment looked at how people respond to certain hypothetical risks to their health. By Dan Mason, University of Cambridge. Duration: 5 mins. In the Web Experimental Psychology Lab from 12.11.2004-26.02.2005.

Error message? Then please try again at a different time and contact Dan Mason.



<-- Hobbies and Interests Study. The purpose of this study was to see whether people with particular types of personality have particular types of interest patterns, and whether the viewers and users of different types of website have interest patterns and personalities that vary. By V. Egan and G. Hagger-Johnson, Glasgow Caledonian University and the University of Edinburgh. 30.10.2004-26.02.2005.

Error message? Then please try again at a different time and contact V. Egan and G. Hagger-Johnson.

<-- Do You Recognize the Company? Indicate whether you know stock companies and how much you trust them. Everybody can participate (knowledge about stocks is not required). By Dominik Orth & Ulf-Dietrich Reips, University of Zurich, Department of Social and Business Psychology. 29.06.2004-26.02.2005.

Error message? Then please try again at a different time and contact Dominik Orth & Ulf-Dietrich Reips.



<-- Working at computer monitors. Since working at a computer monitor has become part of almost everybody's work life, improving the ergonomic work factors must have high priority. The experiment tested participants' ability to recognise and to assign shapes in a playful manner: "Test yourself working as a caretaker and find out, how many keys you can distinguish by colour. Test your memory and your visual perception." The experiment took about 10-15 minutes. By Ivan Sterzinger & Sissel Guttormsen-Schär, IHA, Institut für Hygiene und Arbeitsphysiologie, ETH Zürich. 08.02.-22.05.2005.

Error message? Then please try again at a different time and contact Ivan Sterzinger & Sissel Guttormsen-Schär.



<-- Sexually Expressed Boyhood Relationships with Older Males. This completely anonymous survey was intended to collect detailed retrospective self reported data. It was directed primarily, but not exclusively, at male college students, and college personnel and others were asked to serve as intermediaries by making the existence of the questionnaire known to potential respondents. By David L. Riegel, The On Line Institute for Psychological Research. Information on researcher and publications available from link on research site. 26.09.2004-22.05.2005.

Error message? Then please try again at a different time and contact David L. Riegel.



<-- In Good Times and Bad: A Study on Relationship Optimism. The aim of this study was to learn more about sources of optimism (and pessimism) in close relationships. Most relationships have peaks and downs. The author wanted to learn more about participants' general beliefs about the "fate" of close relationships, and, specifically, about how participants personally construed the future of their own relationship. By Philip Brömer, Department of Psychology, University of Tübingen. 23.08.2004-22.05.2005.

Error message? Then please try again at a different time and contact Philip Brömer.



<-- Health and Personality Processes: Links Explored (HAPPLE). The authors were interested in how personality traits might affect health. The survey provided free feedback scores on one's personality. By Gareth Hagger-Johnson and Martha Whiteman, The University of Edinburgh. This study was for U.K. Internet users only. 05.05.-26.08.2005.

Error message? Then please try again at a different time and contact Gareth Hagger-Johnson and Martha Whiteman.



<-- A Survey of Trust in America. This was a survey of trust in America today. The authors were interested in learning which well-known people and occupational groups you trust, as well as who you trust in your personal life and on important and complex issues. The study consists of 10 questions. By Howard Gardner, Harvard Graduate School of Education. Took 15 minutes to complete - one could win $200. 25.04.-26.08.2005.

Error message? Then please try again at a different time and contact Howard Gardner.



<-- Online test on logical thinking. Tested logical reasoning abilities with a short puzzle. Took less than five minutes. By Christoph Klauer & Christoph Stahl, Institute for Psychology, University of Freiburg. 07.07.2004-26.08.2005.

Error message? Then please try again at a different time and contact Christoph Klauer & Christoph Stahl.



<-- Perception of Health Risk Information. Short interactive experiment looking at different ways of presenting health risk information. By Dan Mason, University of Cambridge. Pilot study. Took 10 minutes. 12.07.-07.10.05.

Error message? Then please try again at a different time and contact Dan Mason.



<--Psychological survey of your personal orientation. Took about 9-25 minutes and consited of a survey about general openness and locus of control. The results were presented at the General Online Research conference 2006 and can be viewed on our poster, which won the conference prize. By F. Funke & U.-D. Reips, University of Zurich, Switzerland. In the Web lab 28.02.-03.04.2006.

Error message? Then please try again at a different time and contact F. Funke & U.-D. Reips.



<--Investigation: Perceptions of Complex Human Behaviour. Participants were to watch a brief (1- to 2-minute) video depicting examples of human behaviour, then complete a brief demographic questionnaire (age, gender, geographical locale, etc.), then perform word puzzles as a delay activity for a few minutes before answering questions about the video. At the end, participants received a debriefing that explained the purpose of the study. By Stephen Lindsay and Elizabeth Brimacombe, University of Victoria, Canada. A learning experience! 22.02.-03.04.2006.

Error message? Then please try again at a different time and contact Stephen Lindsay and Elizabeth Brimacombe.



<--Estimating Chance Events. The study involved providing 3 estimations of the likelihood of an event occurring. This study took 5 minutes or less to complete. By Ulrike Hahn, Cardiff University. 23.01.-03.04.2006.

Error message? Then please try again at a different time and contact Ulrike Hahn.



<--Brand Personality: An academic study on people's opinions and evaluations of well-known brands. Do people choose brands primarily because they match their own personality? This interesting, easy to complete experiment took about 10 minutes and tried to explore how people evaluate and choose brands. By Michael Bosnjak, University of Mannheim, Germany. 22.12.2005-03.04.2006.

Error message? Then please try again at a different time and contact Michael Bosnjak.



<--Survey of Beliefs and Opinions: Self-report measure of 90 different religious, social, political, and spiritual beliefs. University of Oregon researchers have developed this empirical self-report survey based on a comprehensive analysis of beliefs and social attitudes. This survey contains two parts, each of which takes 10 to 20 minutes. Upon completion of each part, participants received a summary report including their Top Ten beliefs and scores on each belief as compared to a large group of people. By Gerard Saucier & Tarik Bel-Bahar, University of Oregon. 08.01.-18.06.2006.

Error message? Then please try again at a different time and contact Gerard Saucier & Tarik Bel-Bahar.



<--The Personality & Openness Study. The topic of the study is personality and general openness. One was also asked for some demographic information (e.g. age, gender) and ones season of birth, as well as some information about ones use of the Internet. We asked for answers to every item in the survey using the response options provided. This survey comprised 7 pages that took one around 10 to 15 minutes to complete. By U.-D. Reips, T. Buchanan, C. Paine, A. Joinson, University of Zurich, University of Westminster, Open University. Hot pick. 12.12.-18.06.2005.

Error message? Then please try again at a different time and contact U.-D. Reips, T. Buchanan, C. Paine, A. Joinson.



Judging English Sentences. This experiment asks you to make judgments of the naturalness of some English sentences. Judgements are made either using numbers or using a slider. By Albert Gatt, University of Aberdeen. Takes at most 10 minutes. 15.05.-18.06.2006.

Error message? Then please try again at a different time and contact Albert Gatt.



Pursuing Multiple Social Goals Simultaneously. This questionnaire begins by setting the stage for an imaginary conversation, providing you with a pair of goals and some facts about the situation and the person you'll be speaking with (i.e., "the audience"). Estimated time to complete questionnaire: 15-30 mins. By David Pautler, University of Hawaii. 18.07.-24.09.2006.

Error message? Then please try again at a different time and contact David Pautler.



Face Recognition. The study investigated the effect of performing an attentional task on face recognition. By Andrew Brand, iPsychExpts. It takes just over 5 minutes to complete. 12.07.-24.09.2006.

Error message? Then please try again at a different time and contact Andrew Brand.



Prediction of Divorce for Just Married Couples. Factors in the prediction of divorce in just-married couples were examined. By Mike Mangan & Ulf-Dietrich Reips, University of New Hampshire; University of Zurich. Takes 2-3 minutes only. 09.05.-24.09.2006.

Error message? Then please try again at a different time and contact Mike Mangan & Ulf-Dietrich Reips.



Goal Pair, Study #1. $5 to participate in this psychology experiment. Joshua Nathaniel Pritikin is investigating situations involving two people: How does one person think about their own goals and the other person's goals? To qualify for $5, you must: Visit the experiment site and register your email address (do not use an anonymous login) + Complete all questions. You can probably finish within 30 minutes but, once you start, you must finish within 24 hours to qualify for the incentive. + Contact Joshua Nathaniel Pritikin. Payment will be sent via http://paypal.com. 07.12.2005-24.09.2006.

Error message? Then please try again at a different time and contact Joshua Nathaniel Pritikin.



<-- Eyewitness Recognition II. The study investigated the effect of performing an attentional task on eyewitness recognition. By Andrew Brand, iPsychExpts. It took just over 5 minutes to complete. 12.10.06-21.01.07.

Error message? Then please try again at a different time and contact Andrew Brand.



<-- Women's reactions to opinions about women. This study was about women's reactions to opinions about women. The study consisted of three parts; answering a few basic questions, reading a short extract from an interview and answering some questions about the extract. The whole study took about 10 minutes to complete and only women could participate. A prize draw to win Amazon vouchers was offered. By Natascha de Hoog, Friedrich Schiller University Jena. 15.10.06-21.01.07.

Error message? Then please try again at a different time and contact Natascha de Hoog.



<-- Learning via Tutorial Dialogues. This Online Experiment is on learning via tutorial dialogues. After a introductory quiz, a talking head will present and discuss exercises on probability theory. You don't have to be an expert on probability theory to participate. Though people with a background in that field might also enjoy asking question to Dr. Brown, the talking face of the dialogue system. By Dietmar Janetzko, National College of Ireland. 27.03.-13.08.07.

Error message? Then please try again at a different time and contact Dietmar Janetzko.



<-- Sexuality Experiment for Heterosexual, Homosexual, Bisexual, and Queer Men. Your answers are completely confidential, and you won't have to provide identifying information about yourself. People say the study is fun, and it doesn't take long. You will have a chance to enter to win a gift certificate, too. Men, over the age of 18, wanted for a study about relationships and health (IRB Northwestern University #0108-017). Participation takes approximately 30 to 45 minutes. You will have a chance to win one of three $50 gift certificates if you choose to participate. By Chris Skidmore, Northwestern University. Chance to win $50. 29.03.-13.08.07.

Error message? Then please try again at a different time and contact Chris Skidmore.



<-- Describing objects for a computer system. Describe objects for a computer system, which then removes them from the screen. By Kees van Deemter, Albert Gatt, Ielka van der Sluis, University of Aberdeen. Suitable for native speakers of English. Start: 05.01.-13.08.07.

Error message? Then please try again at a different time and contact Kees van Deemter, Albert Gatt, Ielka van der Sluis.



<-- Web Design and Web Credibility. In this study, it was investigated which factors influence the credibility of a website providing health care information. Credibility of a website is how much you find it believable and trustworthy. By Hien Nguyen, Judith Masthoff, Peter Edwards, Computing Science Department, University of Aberdeen. 09.08.2007-05.01.2008.

Error message? Then please try again at a different time and contact Hien Nguyen, Judith Masthoff, Peter Edwards.



<-- Judge companies. Do you know these companies and do you trust them? Duration of this study by the Social and Business Psychology department of the University of Zurich: about 5-10 minutes. By Franziska Luthiger & Ulf-Dietrich Reips, University of Zurich. WOW! 22.01.2007-05.01.2008.

Error message? Then please try again at a different time and contact Franziska Luthiger & Ulf-Dietrich Reips.



<-- Evaluating Sexual Assault Crimes. Users were asked to complete a simple survey evaluating a case of sexual assault. By Francis X. Shen, Harvard University. 17.12.2007-24.02.2008.

Error message? Then please try again at a different time and contact Francis X. Shen.



<-- Opinions on Iraq. A study regarding perceptions and judgments of the conflict in Iraq. By Malte Friese, University of Basel. 20.12.2007-24.02.2008.

Error message? Then please try again at a different time and contact Malte Friese.



<-- Responses to transgressions in close relationships. Purpose of this study: to examine people's evaluations of responses to transgressions. Tasks: Answering a set of brief questionnaires as well as reading and evaluating an account of a transgression. Time: ca. 30 minutes. Risks: none. By S. MacKinnon, University of Prince Edward Island. 11.01.-24.02.2008.

Error message? Then please try again at a different time and contact S. MacKinnon.



<-- Psychology of minor experiences. In this survey, you will be questioned about your personal experience in a not unusual type of minor incident that has only recently begun to be explored. Your seemingly inconsequential experience may help throw a light on some important issues in cognitive psychology. The test will take you not more than 10 minutes and is anonymous. By J. Stephan Jellinek, private. 01.01.-25.02.2008.

Error message? Then please try again at a different time and contact J. Stephan Jellinek.



<-- Discover your strengths. Become happier. Win money. The experiment involves identifying your personal strengths using an online questionnaire, and then using some of these strengths in new and different ways for one week, to see if this has any effect on how you feel. In similar studies done in the past, people became happier and less depressed when doing this, and I expect the same to happen in this experiment. You will be sent all the instructions and all the questionnaires you need by email, which you will complete and email back to me. Upon completion of the experiment in 1 week, you will be entered into a prize draw to win 30. What you are required to commit to: 1. Complete some questionnaires taking around 1 hour 2. Use your personal strengths in different ways over a period of 1 week (full instructions will be given for this) 3. Complete some questionnaires at the end of the 1 week period, taking around 20 minutes 4. Complete some follow up questionnaires in 1 month, taking 10-15 minutes What you will gain: 1. You will be entered into a prize draw to win 30 2. Knowledge of your personal strengths 3. In previous experiments in this area, people were found to be happier, less depressed, and experience more positive emotions If you are interested, visit www.strengthsresearch.co.uk By Warren Davies, University of East London. Start: 19.02.-21.04.2008.

Error message? Then please try again at a different time and contact Warren Davies.



<-- Responses to transgressions in close relationships. Purpose of this study: to explore the impact of gender on people's evaluations of transgressions and responses to those transgressions. By doing this research it is hoped that we can begin to understand which responses to transgressions are more or less acceptable in our society. Tasks: Answering a set of brief questionnaires as well as reading and evaluating an account of a transgression. Time: ca. 10-15 minutes. Risks: none. By S. MacKinnon, University of Prince Edward Island. Start: 20.02.-21.04.2008.

Error message? Then please try again at a different time and contact S. MacKinnon.



<-- Psychology of minor experiences. In this survey, one was questioned about ones personal experience in a not unusual type of minor incident that has only recently begun to be explored. Your seemingly inconsequential experience may help throw a light on some important issues in cognitive psychology. The test will take you not more than 10 minutes and is anonymous. By J. Stephan Jellinek, private. 01.01.-21.04.2008.

Error message? Then please try again at a different time and contact J. Stephan Jellinek.



<-- Reasoning with if-then Statements. Participants were asked to make judgments on a number of arguments, all of which have a conditional (if-then) rule and an observation as premises, and a conclusion. The task was to evaluate the conclusion. By Klaus Oberauer, University of Bristol. Takes about 10 minutes. 12.12.2007-30.07.08.

Error message? Then please try again at a different time and contact Klaus Oberauer.



<-- Salary and Co-Worker Characteristics. The very brief study looked at how people decide what job to take, and how they take into account aspects such as salary, co-worker characteristics, and so forth. By Jamie Walkup, Rutgers University. 19.07.-22.09.2008.

Error message? Then please try again at a different time and contact Jamie Walkup.



<-- Shampoo. This Web experiment was about information processing in everyday life. The experiment took about 5 minutes. By Jeannette Oostlander, Ulf-Dietrich Reips, University of Zurich. 16.06.-21.10.2008.

Error message? Then please try again at a different time and contact Jeannette Oostlander, Ulf-Dietrich Reips.



<-- Relationships, Sexuality and Personality. This web-based study was designed to understand more deeply which persons prefer what type of relationships, ranging from brief sexual encounters to ever-lasting committed long-term relationships. This international study had been approved by the local Ethics Commitee. After completion, each participant received immediately a graphical feedback about his or her personality structure, assessed with a "Big Five" inventory of personality. By Sascha Schwarz, Dept. of Social Psychology, University of Wuppertal. 25.07.-21.10.2008.

Error message? Then please try again at a different time and contact Sascha Schwarz.



<-- Forming impressions on social network sites. Study on forming impressions of others based on their Facebook profile. By Adam Joinson, University of Bath. In the lab 22.07. -21.10.2008.

Error message? Then please try again at a different time and contact Adam Joinson.



<-- Presidential election in the US in 2008. In their internet experiment, the authors asked several questions about the candidates and about general perceptions of the election. In particular, they were interested in participants' thoughts about factors affecting the candidates' chances of winning the elections, their attitudes toward the candidates, and their predictions of various aspects of the election outcome. By Hartmut Blank, Steffen Nestler, University of Portsmouth, University of Leipzig. German version (Deutsche Version): http://www.uni-leipzig.de/~diffdiag/projekte/germany/Beginn.html. 20.10.-04.12.2008.

Error message? Then please try again at a different time and contact Hartmut Blank, Steffen Nestler.



<-- How player strategies impact learning. In this experiment the participant plays a strategy and simulation game called "Hortus". The game is of the same genre (but more simplified) as Sim City or Civilization. The entire experiment consists of playing the game (approx. 60-90min) and doing some tests (approx. 30min). These parts can be done separately. The experiment is for adults only (age 19 - 45). By taking part in this experiment, one plays an active part in improving new learning experiences. By Franziska Spring, Educational Engineering Lab, University of Zurich. For adults age 19 - 45 only. 16.09.2008-25.01.2009.

Error message? Then please try again at a different time and contact Franziska Spring.



<-- Memory for Scars. This study is completely anonymous. After answering a few demographic questions (e.g., age, gender, etc.), you will be asked to describe any scars you have on your body. Then you will be asked to report on your memories (if any) of the event that led to each scar. Next you will complete two brief personality measures. Finally, you'll be given an explanation of the purpose of this research project. Those who complete the survey will have the option of entering their names (separately from the rest of their responses) in a lottery for a $100 (Canadian) prize, and will also be able to direct a $5 donation to a worthy cause. By D. Stephen Lindsay, University of Victoria. Start: 07. 11. 2008. In the Web lab 04.12.08-30.04.09.

Error message? Then please try again at a different time and contact D. Stephen Lindsay.



<-- Poker Experiment! . As part of a master's thesis: a Web experiment about the game of poker. Even if you never played poker before, your contribution to this study is very important! For the purpose of this research we welcome a broad range of poker skills. Participation takes 10 min or less. With your complete participation you will be included in a raffle of three prizes to win: $100, $50 or $30 (or the equivalent in local currency). The prize level will depend on the draw ranking and is not influenced by your performance. Please click on the link above to participate in the Web experiment. Thank you very much for your contribution! By Denise Frauendorfer, Ulf-Dietrich Reips, University of Zurich. . In the lab 22.12.2008-07.05.2009.

Error message? Then please try again at a different time and contact Denise Frauendorfer, Ulf-Dietrich Reips.



<-- Relationships & Sex. This study is examining attitudes toward men and women. To participate, you must be at least 18 years old. It will take approximately 20-30 minutes to complete this survey. All responses are anonymous. By Kristine M. Chapleau, Debra L. Oswald, Marquette University. Start: 30.01.-25.7.2009.

Error message? Then please try again at a different time and contact Kristine M. Chapleau, Debra L. Oswald.



<-- Which medication would you support? Win up to $100! A Web experiment, as part of a master's thesis in the Department of Psychology at the University of Zurich, Switzerland. Takes 10 min or less. With your complete participation you will be included in a raffle of three prizes to win: $100, $50 or $30 (or the equivalent in local currency). The prize level will depend on the draw ranking and is not influenced by your performance. By Denise Frauendorfer, Ulf-Dietrich Reips, University of Zurich. Start: 27.04. -25.7.2009.

Error message? Then please try again at a different time and contact Denise Frauendorfer, Ulf-Dietrich Reips.



<-- Phrase Detectives collaborative annotation game. Phrase Detectives is a "Game with a Purpose", meaning that the data we collect will be used to help improve computer systems. The data will be used to train anaphora resolution systems that can be used to improve text summarisation and search engine indexing, which will ultimately lead to a better Web experience for you. By Jon Chamberlain, Massimo Poesio, Udo Kruschwitz, Essex University. 29.10.2008-25.7.2009.

Error message? Then please try again at a different time and contact Jon Chamberlain, Massimo Poesio, Udo Kruschwitz.


Contact: Ulf-D. Reips «weblab@genpsy.unizh.ch»

Psychologische Institute der Universitäten Tübingen und Zürich

All contents copyright (C) 1995-2009, Ulf-D. Reips. All rights reserved.
Last reviewed: July 25, 2009
URL: http://www.psychologie.unizh.ch/sowi/Ulf/Lab/WebLabDokuE.html