Participants in a study on how age affects reaction time were asked to press a button every time they heard a buzzer. A person standing at a podium in front of them triggered the buzzer by flipping a hidden switch. During the experiment the switch operator began to flinch slightly before the buzzer sounded. The results of this study would be confounded due to ___________
A) inferential bias.
B) experimenter bias.
C) selection bias.
D) control bias.

Question

Quizplus · Accepted Answer

The flinching of the switch operator could create experimenter bias, as the participants may unconsciously pick up on the cue and adjust their reaction time accordingly.

Participants in a Study on How Age Affects Reaction Time