A measurement that accurately reflects the meaning of a variable is said to have a form of validity called what?
a. external validity
b. internal validity
c. construct validity
d. convergent validity
Ans: C
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According to Seligman, learned helplessness has been found to be related to:
a. restlessness. c. excessive risk taking. b. depression. d. unrealistic goals.
Reliable tests:
a. measure what they are designed to measure b. sample broadly across the domain of interest c. can be used to accurately estimate future performance d. produce similar scores from one administration to the next
One major current criticism of Piaget's theory of cognitive development is that:
A) his research was poorly done. B) it applies only to Swiss children. C) children do not all go through the same sequences of it. D) it occurs gradually instead of in stages.
Regarding the repair of the central nervous system, which of the following statements is FALSE?
a. Although animal studies have been conducted, no human trials involving the repair of damaged spinal cords have been undertaken yet. b. Scientists have partially repaired cut spinal cords in rats. c. Currently, a serious injury to the brain or spinal cord is usually permanent. d. Stem cells have been injected into the gap in the spinal cord to form a cellular bridge to repair the damaged spinal cord.