Frequently asked questions

Is there a difference between being a "Class Credit" Participant and a "Paid" Participant?

Yes! Someone who needs to participate in a Rady Behavioral lab study as a requirement for one of their classes is a "class credit" participant. Others who want to participate in Rady Behavioral Lab study to be compensated are considered "paid" participants.

Do I need to be a UCSD student to participate in the Rady Behavioral Lab studies?

No, you do not need to be a UCSD student to participate. In fact you do not need to be associated with UCSD in any way. We are always looking for participants willing to take part in our studies. Those who want to take part in our studies who are not UCSD students would be considered "paid" participants.

Will I get paid for participating in experiments?

Participants are compensated for taking part in our experiments in various ways. Depending on the experiment, participants may receive class credit, they may be paid a certain amount of money, they may be paid based on their performance on a task or they may be entered in a raffle to win a prize. The compensation scheme for each experiment is provided with the experiment description.

How do I register in the Rady Behavioral Lab subject pool?

Important to note: There are two different Rady Behavioral Lab subject pools.

  • To register for class credit studies, you need to create an account on SONA here.

  • To register in the paid Rady Behavioral Lab subject pool, you will need to create an account on SONA here. You will need a valid e-mail address to create this account.

You must create an account in the correct SONA system in order to either participate for class credit or to be compensated.

Are my answers confidential?

Absolutely! All answers submitted to us will be kept confidential. Responses will never be associated with the specific login or participant. We will never know which answers are yours.

Can I participate in an experiment more than once?

Most of our experiments can only be taken once. There are some exceptions. Each experiment will be labeled according to whether or not it can be repeated.

Is there an age requirement for participation?

You must be at least 18 years of age to participate in studies.

How can I learn more about an experiment?

If you have any questions about class credit experiments, please email

If you have any questions about our paid experiments, please email

How do I unsubscribe from the Rady Lab?

E-mail for paid experiments or for class credit experiments.