Some of the hormonal changes of puberty begin in
a. adulthood.
b. middle childhood.
c. early childhood.
d. infancy.
Answer: b. middle childhood.
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According to heritability estimates, what percentage of the variability in IQ can be explained by genetics?
A. Hardly any B. About half C. Nearly all D. It differs by sex and race
The apparent causation and developmental history of an illness is referred to as its
a. etiology. b. epidemiology. c. diagnosis. d. prognosis.
In classical conditioning, an observable reaction to an environmental event that is elicited only after training or experience is referred to as:
a. an unconditioned stimulus b. an unconditioned response c. a conditioned response d. a conditioned stimulus
Newborns spend the greatest total time each day in which type of state?
a. Regular or irregular sleep b. Drowsiness c. Crying d. Alert inactivity