Which of the following patterns is usually characteristic of symbolic play?
a. It peaks between 18 months and 3 years, and decreases thereafter.
b. It begins at about 18 months, and increases until about 12 years.
c. It begins at about 3 years, peaks at about 9 years, and decreases thereafter.
d. It peaks between 5 and 7 years, and decreases thereafter.
C
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Natural selection has favored species that reproduce sexually because sexual reproduction
a. is pleasurable, which is reinforcing. b. leads to genetic diversity, which is adaptive. c. leads to a longer life span and more variability in behavior. d. produces organisms that have the capacity for thinking and language. e. is more efficient than asexual reproduction.
Which of the following is true of the effect of caffeine on the nervous system?
A. It causes a drop in heart rate. B. It increases reaction time. C. It increases relaxation. D. It increases attentiveness.
Which of the following study strategies and mnemonics is associated with improved flexibility in applying memories to new situations?
A. Test taking B. Method of loci C. Creating acronyms D. Distributed practice
When Delaney gets upset and starts hurling insults at her classmates, she is placed in a quiet and boring room for about five minutes. This technique is known as ______ and relies on the principle of ______.
a. time-out; negative punishment b. in-school suspension; positive punishment c. logical consequence; negative reinforcement d. scolding; positive reinforcement