George is beginning to look back in his life and evaluating and coming to terms with his life. Which stage describes what George is attempting to accomplish?

Steve and his wife, Bethany, both work full time. Since Steve usually arrives home first, he takes on the burden of cooking and cleaning, but he is becoming frustrated with the current division of chores. Which of the following learning approaches is likely to work best to increase Bethany’s participation in the household duties?

a. ?Steve should consistently comment upon Bethany’s lack of help with cooking and dish washing until her behavior changes. b. ?Steve should refuse to cook and clean, forcing Bethany to realize how her actions affect their relationship. c. ?Steve should ignore negative behaviors and notice and reward positive behaviors, gradually increasing Bethany’s participation in cooking and dish washing. d. ?Steve should make a list of how all of Bethany’s behaviors have affected his life.

Superstitious behaviors are often very resistant to extinction because they tend to be reinforced on:

a. a continuous reinforcement schedule b. a variable-ratio schedule c. a fixed-interval schedule d. an adjusting-interval schedule

Five-month-old Eric picks up his mother's keys and begins to put them in his mouth. His mother takes the keys away from Eric, and he begins to cry. However, as soon as she puts the keys out of sight behind her back, Eric stops crying and becomes interested in something else. This story demonstrates Eric's lack of

a. conservation. b. transformation. c. egocentrism. d. object permanence.

In human development, the nervous system develops from which germ layer?

A. the endoderm B. the mesoderm C. the ectoderm D. the blastoderm