A critical period of development is a time when a particular development must happen if it is ever going to happen
Indicate whether this statement is true or false.
True
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A research finding that does not generalize to circumstances different from those of the experiment is lacking
a. internal validity. b. external validity. c. random assignment. d. statistical significance.
What causes the largest number of accidental deaths among children in the United States?
a. Fires b. Drowning c. Automobile accidents d. Poisoning
When the population variance or standard deviation is not known, you must use a t statistic instead of a z-score for a hypothesis test
Indicate whether the statement is true or false
All of the following are valid criticisms of intelligence tests except for one. Which is the exception??
a. ?They may not predict success in school. b. ?They may be biased against certain ethnic or racial groups. c. ?They may have a negative impact on the self-image of children who discover they have scored poorly. d. ?Their test scores may reflect factors unrelated to intelligence (e.g., motivation).