By 2050, the older adult population in the Unites States is expected to include 1 in every ____ Americans:
a. 5
b. 6
c. 8
d. 10
a
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Piaget hypothesized that an infant's first schemas for interacting with the environment always involve
a. cross-modal reactions. b. conservation. c. reflexes. d. trial-and-error accommodations.
What is the most common statistical analysis for a single-factor multiple-group design?
a. ANOVA b. independent-measures t test c. repeated-measures t test d. regression
Which of the following is true of the active process of inhibition?
a. It is the inability to prevent oneself from making some cognitive or behavioral response. b. It is the process of responding or activating some set of cognitive operations. c. It is detrimental to sophisticated thought because it blocks key ideas. d. It is often as vital to sophisticated thought as activating some mental mechanism.
Statistical significance determines whether an observed difference between a treatment and control group is likely due to
A. random assignment. B. external validity. C. chance. D. confounds.