According to Freud's theory, the developmental periods that leave their mark on adult personality are

A) defence mechanism stages.
B) fixation stages.
C) psychological stages.
D) psychosexual stages.

Mutations result from random errors in

A) brain development.
B) gene replication.
C) natural selection.
D) neural transmission.

The results of outcome research on the effectiveness of different psychotherapies reveal that

A) no single type of therapy is consistently superior.
B) behavior therapies are most effective in treating specific problems,such as phobias.
C) cognitive therapies are most effective in treating depressed emotions.
D) all of these statements are true.

Media consumers usually notice instances of product placement.

Campaigns to educate youth about drugs and alcohol abuse are forms of ________ prevention.

A) secondary
B) primary
C) tertiary
D) basic

Couples therapy involving both partners is more effective than for just one of them.