At what point do children typically peak in same-sex friend choices?
a. six
b. eight
c. nine
d. eleven
D. Whiting and Edwards (1988) found that this peeked at age 11.
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When teenagers are asked why they do not wait to have sex until they are older, the main reason reported is usually ____________________
Fill in the blank(s) with correct word
Repeated failure to replicate findings of a particular study means that
a) The original results were wrong. b) The original results were due to chance. c) The original results may be restricted to very specific circumstances. d) All of the above
The investigation of how behavior is strengthened by presentation of positive reinforcers (e.g., food) or withdrawal of negative reinforcers (e.g., shock) is best known as
A. classical conditioning. B. the method of savings. C. choice reaction time. D. operant conditioning.