Developmental researchers often make use of an experimental procedure relying on habituation. How does one know that an infant has habituated to, say, a red rod moving back and forth?
A) His heart-rate increases.
B) His pupils dilate.
C) He stops looking at it.
D) He repeatedly-that is, habitually-reaches out for it.

Question

Quizplus · Accepted Answer

The best way to know whether an infant has habituated is to observe their looking time. If the infant has habituated to the stimulus, they will stop looking at it. Therefore, option C is the correct choice. Options A and B are incorrect because they do not relate specifically to habituation, while option D is incorrect because repeatedly reaching out for the object would indicate interest and not habituation.

Developmental Researchers Often Make Use of an Experimental Procedure Relying