By eight to 12 months of age, infants smile more frequently when another person is nearby. This behavior is called a(n)

A _______________ is a device which can measure physiological arousal such as heart rate and palm sweat. It is often referred to as a "lie detector."

FIll in the blank with correct word.

There are a number of methods we can use to maximize data quality when working with older

adults. Which of the following was not a method described in the book? A) Avoid any procedures that may be mildly distressing. B) Consider multiple testing sessions. C) Avoid asking questions that are too general in nature. D) Monitor the reading or comprehension levels of questionnaire or interview items.