Which piece of experimental apparatus did James McKeen Cattell invent?
A) a clock rigged to make a sound when its pendulum reached its farthest swing
B) a lip-key used to help record reaction times for verbal responses
C) a series of embedded figures that cannot be perceived by color blind subjects
D) a "tachistoscope" that presented stimuli to subjects for just small fractions of a second

Question

Quizplus · Accepted Answer

James McKeen Cattell invented the lip-key, which was used to measure reaction times for verbal responses in psychological experiments.

Which Piece of Experimental Apparatus Did James McKeen Cattell Invent