4 – Specific Guidelines for Lab and Lab-in-Field experiments

Participants in experiments receive payment for their time and effort. Payments usually depend on your decisions during the experiment, and average payments are typically around £10/hour. Experiments do not typically involve anything more than making decisions at a computer. If we run a session that involves something else, or has a different payment method, we will include such details in the advertisements for that particular session. Also please keep in mind that you need to be able to climb two flights of stairs to get to the lab. You will not be able to participate if you cannot get to the lab!

4.1 – Rules

In order to participate in experiments conducted by researchers of the Nuffield Centre for Experimental Social Sciences, a person has to register online (https://cess-subjects.nuff.ox.ac.uk) and sign a consent form indicating that they understand the rules and consent to take part in experiments at CESS. This form may be signed at the time of the first participation in a laboratory experiment.

Rules for laboratory experiments.

Subjects participating in lab experiments can consult the lab participation rules on our web site at https://cess-subjects.nuff.ox.ac.uk/public/rules.php. Online subjects can consult the rules for participating in online experiments at https://cessonline.com. At the outset of each experiment that is conducted in the lab subjects are shown a brief consent video. Participants in CESS online experiments are shown the following brief consent video.

By registering for laboratory experiments, subjects indicate their intention of taking part in experiments conducted by researchers of the CESS. For each experiment, a certain number of registered persons will get an invitation email. Only the invited persons have the right to take part in the experiment. Subjects are informed as follows regarding the experimental procedures:

  • In case you get an email which invites you to participate in a particular experiment, you have to take the steps outlined in this email in order to be able to take part in the experiment. By doing so, you indicate your commitment to participate.
  • For each experiment, an excess number of participants will be allowed to register. Should more participants arrive than can be used, a random draw will be used to determine who will participate.
  • Participants who register and show up but are not allowed to participate in the experiment due to capacity constraints or other failures are compensated with the show-up payment.
  • Every participant who registers for an experimental session and shows up on time will at least be compensated by a show-up payment of £4. Participants who arrive after the scheduled start of an experimental session and do not participate will not receive the show-up payment.
  • Usually, participation will be compensated in cash. The amount may depend on the participant’s and other participants’ decisions during the experiment.
  • During an experiment, each participant will have to act according to the rules stated by the researchers in the instructions. Subjects who do not obey experimenter instructions and lab rules may be asked to leave.
  • If you agree to take part in a particular experiment, you are expected to arrive at least 5 minutes ahead of time. This will help us start experiments on time. Additionally if you do not turn up or turn up late then the experiment might be cancelled because of a lack of participants.

4.2 – Ethics Privacy and Data Protection

At CESS, all information participants get during our studies is true. This implies:

  • We never deceive participants. For example, if we inform you that another participant is making a choice on which you then can react, this is indeed the case.
  • We keep our promises made to participants. For example, if we promise a certain payment, participants will indeed receive it.
  • In the event that we are responsible for a mistake that is to the disadvantage of participants, we will inform and compensate the respective participants.
  • We design, conduct and report our research in accordance with recognized scientific standards and ethical principles.

We adhere to the terms of our privacy policy as stated below:

  • The data in the participants’ database will only be used to conduct experiments at CESS. The data will never be given to third parties.
  • There is no direct link between the personal data in the participants database and the data collected during a study.
  • Every participant can decide at any moment to unsubscribe from them participants database. Unsubscribing from the database implies that no further invitations to our studies are sent to that person. And subjects can request that their personal membership records be permanently deleted. These requests should be sent cess-lab@nuffield.ox.ac.uk.
  • The data generated during experiments is anonymous and is used to write scientific articles and to give presentations. We provide links to working and published papers for research done at CESS on the main CESS website.

4.3 – Consent Form

Form of consent for participation to experiments at CESS.

Download the form

4.4 – Example of statement of informed consent for Lab experiments

Download the statement example
Download the Lab-in-Field experiment consent form