Placebos are used in research to control for

a. nontreatment effects.
b. the subjects' expectations about treatment.
c. secondary drug effects.
d. random fluctuations in the independent variable.

B

Psychology

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Watson's experiment with Little Albert demonstrated that fears might be _____

A) based on classical conditioning B) deeply rooted in the innate unconscious of infants C) based on the principle of observational learning D) based on instinctive drift

Psychology

Sibling contact and support

A) decline from early to middle adulthood. B) rise from early to middle adulthood. C) are highest during middle adulthood. D) decline from middle to late adulthood.

Psychology