According to the article Spare the Rod, about punishment and aggression, the so-called "time out" strategy which is used to shape the behavior of children is a form of:

Mary's parents are trying to decrease the number of times that she feeds the family dog during the day. Mary's parents set a criterion level for the maximum number of times that she can feed the dog in a day, and if Mary achieves this level she gets a story read to her at bedtime. Which type of differential reinforcement are Mary's parents using?

a. DRO b. DRA c. DRL d. DRC

Longitudinal studies find that __________ attachments in childhood are associated with the quality of romantic relationships in adolescence and early childhood.

A. secure B. avoidant C. insecure D. incomplete