Lab Policies

RUNNING SESSIONS AT PExL

• Experimenters should arrive at the lab at least 30-minutes prior to the experiment, and earlier if set-up circumstances warrant it. Experimenters must block off enough time to allow for preparation, plus the actual conduct of the experiment, subject payments, and cleanup time.
• Before an experimental session, experimenters must check each participant’s Princeton University student ID card and match it with the information in the signup sheet. All PExL participants must be registered Princeton University students.
• Login procedures at the start of the experiment must be done so that identifying information is not recorded by the computer. To facilitate this, we ask that participants use their recruiting platform ID to log in to any experimental software. This will also allow experimenters to match experimental data with pre-screening information available through recruiting platform. Experiments run by pencil and paper should not have identifying information on any subject’s recording forms.
• Subjects may not use the computers for general use such as browsing, email, or searching directories. It is the responsibility of the experimenter to monitor this.
• Subjects must be paid in private and must leave the lab immediately after being paid.
• All recruited participants who show up in time for the posted experiment are entitled to receive a show-up fee of $7.00. For any subject who participates in the experiment, their earnings during the experiment are added to their show-up fee. Negative earnings during an experiment may not be subtracted from the show-up fee. The standard lab payment for on-time extras is $7.00. Experimenters are not obliged to pay show-up fees to late-arriving extras. Show-up fees in excess of $15.00 require prior approval from PExL’s director.
• Subjects, extras, no-shows, and payment information must be recorded in PExL's record book. Additionally, basic information about every session conducted at PExL (including failed sessions) must be filled out in PExL’s record book, located in the lab’s experimenter space, after the session is completed.
• Any unusual or inappropriate circumstances must be reported to PExL’s director.

GENERAL RULES

• Files should be moved off of local machines and off PExL’s main computer as soon as possible. Any files an experimenter leaves on a local machine or on PExL’s main computer may be deleted without notice. PExL is not responsible for lost files.
• PExL makes no guarantees regarding equipment, programs, documents, or other materials in the computer lab. The lab is not responsible for loss of data due to faulty programs or equipment.
• Report any PC or printer problems, such as paper jams, toner replacement, backed-up print jobs, etc. to the PExL Administrator. Please do not attempt to fix any lab equipment on your own.
• No food, drink, or tobacco is allowed in the lab at any time. Experimenters are responsible for enforcing these rules. Mobile phone usage in the laboratory is discouraged and may also be banned by experimenters.
• Exceptions to any of these policies for a particular experiment require the advance permission of the director.