____ is the most commonly experienced infectious disease among infants and preschoolers

The DSM-IV-TR requires a diagnosis to provide information on ____ categories

a. 3 b. 4 c. 5 d. 6

Why did Waters and colleagues develop the Attachment Behavior Q-set?

A) Because these researchers were not satisfied with the validity work of the Strange Situation. B) So researchers could study how temperament and attachment influence infant development simultaneously. C) To allow a quicker and easier assessment of attachment behaviors than the Strange Situation. D) To allow for an easier way to classify infants as secure, avoidant, or ambivalent.