Which of the following is not an assumption of the ?2 test of independence?
a. It is a nonparametric test
b. It is appropriate only for ordinal data.
c. The frequency in each cell should be at least 5.
d. The sample should be randomly selected.
b
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Important research on schizophrenia evaluates the influence of __________ in order to evaluate possible interactions between psychosocial stressors and biological factors in the disorder
a. peers c. poverty b. schools d. folklore
. ________ are the unique genetic makeup of individual people.
A. Endophenotypes B. Human genome project C. Genotypes D. Phenotypes
Somnambulism is synonymous with __________.
A. sleep attack B. dreaming while awake C. sleepwalking D. cataplexy
Selfless, altruistic behavior is exhibited by
a. the heroes who risk their lives while saving the lives of others. b. blood and kidney donors. c. community volunteers. d. all of these people.