One or more credits will be assigned every time you miss an experiment without informing the experimenter beforehand. If the experiment session was for 1 credit, you will be assigned 1 additional credit. If the experiment session was for 2 or more credits, you will be assigned up to 2 additional credits. You must reschedule yourself for the missed experiment. If you arrive late for an experiment, the experimenter may not be able to run you at the scheduled time and you will need to schedule another time to participate in the experiment.
Experiments begin precisely at the specified time.
Arriving even 2 minutes late may be too late for you to participate in that session and you will need to reschedule another time to participate. Experimenters usually post a sign noting that an experiment has already begun. Put your name on this sign so that the experimenter does not report you as a no-show. If the experiment was worth 1 credit, you are assigned 1 additional credit. If the experiment was worth two or more credits, you are assigned up to two additional credits.