To take part in studies run by the CASSM Lab, you register on this website and agree to the rules below. Registration is open to anyone who is at least 18 years old and lives in the United Kingdom.

Your rights

• All CASSM Lab studies conform to accepted ethical standards for research.
• You will always be told what a study involves before you decide whether to take part. Before each study you receive an information sheet and are asked to confirm that you have understood it.
• We do not use deception. Everything you are told in a study’s instructions is true.
• Taking part is voluntary. You never have to accept an invitation, and you can withdraw from a study at any time, without giving a reason and without penalty. If you withdraw, you may not receive payment for that study.
• Participants, researchers and staff are protected from physical, psychological and emotional harm.
• We do not share your personal information with third parties without your permission, unless the law requires it. See our Privacy Policy.
• Data from studies is used for academic research. The information sheet for each study explains how your data will be used, and you are asked for your consent before you take part.

How taking part works

• Register once. Each person may hold one account. Duplicate accounts will be removed.
• Wait for an invitation. For each study, we invite a number of registered participants by email. You can only take part in a study you have been invited to.
• Sign up for a session. The invitation explains how. If you do not sign up, you cannot take part.

What we expect from you

• Attend the sessions you sign up for. When someone does not show up, we may have to cancel the session, which also lets down the other participants. If you can no longer attend, contact us as early as possible.
• Missed sessions. If you repeatedly miss sessions you signed up for without good reason, we may remove you from the participant pool.
• Be on time. For laboratory studies, arrive a few minutes before the scheduled start. For online studies, be ready at your computer, free of distractions, by the scheduled start. Late arrivals may not be able to take part.
• Disruptive behaviour. Anyone who disrupts a session or behaves abusively may be asked to leave without payment and may be removed from the participant pool.
• Keep your profile accurate. Enter your details carefully and truthfully, and update them if they change.

Payment

• You choose how you are paid: Amazon voucher or bank transfer.
• The amount you earn can depend on your decisions, the decisions of other participants and chance.
• We sometimes invite more participants than a session needs. If you arrive on time but cannot take part because the session is full, you receive a show-up payment.