Piaget thought that cognitive development peaked at
A) 5 or 6.
B) adolescence.
C) 21
D) middle age.
B
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Any behavior that occurs infrequently among the members of a population would be considered:
a. culturally deviant b. dysfunctional c. emotionally distressing d. statistically deviant
A researcher asked students how happy they are with their class. If he or she wants to see the shape of the distribution, what is the best way to present the data?
A. frequency table B. mean C. interquartile range D. graphs
Dr. Swaminathan has recruited 100 participants to be in his study on personality traits. He
knows that many of them differ with respect to education, socioeconomic status and religion. To equally distribute these differences across the four groups he will use in his study, Dr. Swaminathan should a. assign subjects to groups using a counterbalancing procedure. b. randomly assign subjects to the groups. c. provide operational definitions for education, socioeconomic status, and religion. d. design the study so the effects of these variables on personality can also be measured. e. provide a valid operational definition of the dependent variable.
Before the age of 10, children are ___________ times more likely to die from an accidental injury than from an illness
a. five c. three b. four d. two