Informed Consent: Studies in Judgment and Decision Making
The CSUF Institutional Review Board has requested that you
should be informed of the following.
Before you decide to participate in on-line studies in judgment and decision making, you should
consider the following information:
- These studies pose no risks of which we are aware, beyond the normal risks
of daily life in a nation that protects freedom of speech and freedom of
the press. You can read each study before you decide whether or not to
participate. These studies involve reading descriptions of situations
and indicating what judgments you would make in those situations or what
decisions you might make when presented a choice. These studies ask
you to read, to think, and to press buttons on your computer to respond.
- If you consent to participate, it means that you are giving permission to
scientists to analyze your data and to
publish results of new discoveries that might be made based on their
- In publications of our research, we do not identify our participants,
except in statistical form. The data are presented in a statistical
format in which the identity of individual participants and their
data are not revealed.
- Some studies may request your email address. It is NOT required that you
enter your email address to participate. That is up to you. We use
the email addresses strictly for the purpose of contacting prize winners.
Yes. we do provide prizes of cash in some studies. If you do not enter
your email address, then you cannot win a prize, but you can still
participate and receive all other benefits of participation.
- We do not sell, exchange, or give email addresses or other personal
information to anyone except as required by law (e.g., by lawful
warrant issued by a judge). We do not sell, exchange, or give
data to anyone with any other identifying information.
- Data may be shared with other scientists. Before data are made available
to others, however, all identifiers (including email address, IP address,
and comments) are deleted. As noted above, we do not sell, trade, or
give away these addresses or other information that might conceivably
be used to identify someone. Please do not make terrorist threats or
other threats of violence, as we might be required in such cases to
provide identifying information to the police.
- Data are sent in non-encrypted form with no more security than email.
Therefore, you should respond as if you were sending email and use the
same standards for communication with us as if you were sending email.
You should be aware that email is not sent in encrypted (coded) form.
Although unlikely, it is possible that the FBI or department of homeland
security might be capturing the data transmission, for example.
- You can examine each study before you decide to participate. If you consent
to participate, you are agreeing to the use of the data for scientific
purposes, which may involve publication of scientific papers. To get an idea
of how such studies are reported, see the publications listed at the bottom
of this page.
- If you would like to review the format in which data might be provided to
other scientists, please visit the
where you can download
data. As you will see if you examine the data sets, there is no way
for any of this information to be identified with any particular
- CSUF students should be aware that all studies have been reviewed by
CSUF Institutional Review Board and have been judged to be safe and
satisfying CSUF regulations; however, you may decide for any reason that
you do not want to participate in any particular study. There are many other
studies in which you can participate; these opportunities are posted
on the Sona-System computer. So, if you prefer not to participate
in one or any of these studies, there are many other choices available
to you. As stated in the syllabus for your class, there are also
alternative assignments that do not involve participating in any
- CSUF students who are doing experiments for credit toward a class
assignment will not receive credit for cheating the assignment by
randomly pushing buttons to speed through the task as fast as possible.
The purpose of the assignment is to get you to think; we can give no credit for
behavior that an instructor would identify as cheating the assignment.
If you were hoping to get credit for such cheating, you should not even
start these experiments because you will receive no credit for that
You can read each study and decide whether or not you want to participate.
If you decide to participate and to allow your data to be analyzed for research
purposes, including possible publication in scientific journals, you can signal
your agreement by pushing the button that sends the data in each study. However,
if you decide that you do not want to participate, then you should not push the button
that sends the data.
to visit studies in judgment and decision making.
- Birnbaum, M. H. (1999b). Testing critical properties of decision making on the Internet.
Psychological Science, 10, 399-407.
- Birnbaum, M. H. (2000). Decision making in the lab and on the Web. In M. H. Birnbaum (Ed.),
Psychological Experiments on the Internet. (pp. 3-34). San Diego, CA: Academic Press.
- Birnbaum, M. H. (2001). A Web-based program of research on decision making.
In U.-D. Reips & M. Bosnjak (Eds.),
Dimensions of Internet Science (pp. 23-55). Lengerich, Germany: Pabst Science Publishers.
- Birnbaum, M. H. (2004a). Causes of common consequence paradoxes: An experimental dissection.
Journal of Mathematical Psychology, 48, 87-106.
- Birnbaum, M. H. (2004b). Testing decision theories in gambles expressed as natural frequencies:
Stochastic dominance, event-splitting, and cumulative independence. Organizational Behavior and Human
Decision Processes, 95, 40-65.
- Birnbaum, M. H. (2005a). Three new tests of independence that differentiate models of
risky decision making. Management Science, 51, 1346-1358.
This material is based upon work supported by the National Science Foundation under Grants No. SBR-9410572, SES-9986436, and BCS-0129453. Any opinions,
findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily
reflect the views of the National Science Foundation.