In a carefully controlled experiment, the only possible cause for any effect noted in the dependent variable is the
a. independent variable.
b. extraneous variable.
c. random assignment.
d. random selection.
ANSWER: a
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ANSWER:
d a. ?elaborative b. ?maintenance c. ?rote d. ?repetitive
Derrick speaks to his son using short sentences with high-pitched, exaggerated expression and clear gestures to support verbal meaning. Derrick uses __________
A) a referential style B) an expressive style C) infant-directed speech D) telegraphic speech
When Henry came out to the sun porch, his granddaughter asked him how he slept. "Like a baby," Henry replied. If this is true, which of the following did Henry experience?
a. an unbroken sleep cycle b. periods of sleep apnea c. multiple short sleep cycles d. two-phase circadian rhythm
Osteoarthritis is a painful, degenerative disease characterized by wear and tear on joints. Select one:
a. true b. false