DeCasper and Fifer used ______________ as the dependent variable to test if
Two-day-old infants could identify the sound of the mother's voice.
A) eye movements
B) head tilts
C) pattern of nipple sucking
D) eye blinks

Question

Quizplus · Accepted Answer

DeCasper and Fifer used the pattern of nipple sucking as the dependent variable to test if two-day-old infants could identify the sound of the mother's voice. The infants were given a choice between their mother's voice and the voice of another woman, and their sucking pattern was measured to determine which voice they preferred.

DeCasper and Fifer Used ______________ as the Dependent Variable to Test