A deepening of the voice in boys usually occurs
a. before the start of the growth spurt.
b. at about the midpoint of the growth spurt.
c. at age 19.
d. at the same time in all boys.
Answer: b. at about the midpoint of the growth spurt.
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When Watson and Rayner (1920) conditioned an infant to fear a white rat by making a loud noise whenever the rat appeared, it was an example of __________.
A. Sigmund Freud's theory B. classical conditioning C. social learning theory D. operant conditioning
According to Linehan's DBT Biosocial theory of borderline personality disorder, an invalidating environment
a. denies access to necessary treatment. b. foments an invalidating self-schema. c. obviates relationship development. d. leads individuals to internalize flaws.
The results from a two-factor ANOVA show no main effect for factor A but a significant interaction. What can you conclude based on this pattern of results? a. Factor A has no effect on the participants' scores
b. Factor A may have an effect but, if so, it depends on the levels of factor B. c. Because the interaction is significant, factor A must also have an effect. d. The effect of factor A is constant across all levels of factor B.
Stress is likely to occur whenever
a. anger or rage occurs. b. persistent or stereotyped responding is required of an organism. c. an organism is forced to distinguish between real and imagined barriers. d. demands are placed on an organism to adjust or adapt.