_____________ guarantees that even though a variable cannot be controlled, its influence will not affect the outcome of the experiment by being confounded with the independent variable
a. Experiment bias
b. Randomization
c. Conformity
d. A placebo condition
D
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At what age does babbling first appear?
A. 10 to 12 months B. 4 to 6 months C. 2 to 3 months D. 1 to 2 months
Todd is a twenty-seven-year-old stockbroker. One of Todd's more striking features is his height—just 4 feet 2 inches tall. His parents, brothers and sisters, grandparents, aunts, uncles, and cousins are all over six feet tall. Based on your knowledge of the interplay between genetics and environmental factors, what is the most likely explanation for Todd's height?
a. ?an inherited gene b. ?an early childhood illness c. ?a sedentary lifestyle d. ?genotype normalization
Most research identifies the "toxic component" in the Type A behavior pattern as
A. achievement striving. B. control motivation. C. time urgency. D. hostility.
Pavlov placed meat powder in the mouths of the dogs, and they began to salivate. Pavlov's student noticed that after a few days the dogs began to salivate at the sound of the student's footsteps. The salivation to the sound of the footsteps was a _______
a) primary reinforcer. b) positive reinforcer. c) conditioned response. d) secondary reinforcer.