In an experiment, colored letters flash briefly on a computer screen. On each trial, participants are asked to report the letter
s in their correct colors and to rate their confidence in their responses. In one condition, participants are required simultaneously to monitor the screen for the appearance of a particular digit. Whether participants must watch for a digit is a(n) _____ variable in this experiment.
In one condition, participants are required simultaneously to monitor the screen for the appearance of a particular digit. Whether participants must watch for a digit is a minimal variable in this experiment.
