Girls who masturbate do so more frequently than boys, although they self-disclose less often

After arguing with her boyfriend Peter over the telephone, Roseanne smashes down the receiver and then throws the phone across the room. This behavior demonstrates

a. the weapons effect b. displacement c. instrumental aggression d. the adaptation-level phenomenon

Research on sleep patterns and depression indicate that individuals with depression

a. have increased Stage 3 sleep. b. are deep sleepers. c. have decreased Stage 1 sleep. d. enter into REM sleep earlier in the night. e. experience the same amount of eye movements as non-depressed individuals.