If random samples, each with n = 36 scores, are selected from a normal population with µ = 80 and ? = 18, how much difference, on average, should there be between a sample mean and the population mean?
A) 2 points?
B) ?3 points
C) ?6 points
D) ?18 points
B
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Cohesion, properly defined, is the attraction that takes place between individuals and does not entail attraction to the group.
a. True b. False
The problem-solving ability known as "selective comparison" involves comparing new problems with
a. old information or with problems already solved. b. novel possibilities for uses of objects used in problem-solving. c. mental images of projected solutions. d. seemingly unrelated bits of information.
Which of the following is important to remember when considering that genes are a major influence on behaviors, disease, and disorders?
"Genes are not destiny." "Heritability outweighs environmental influences." "Our genes are our behaviors." "I am destined to live and die by my genotype."
According to Bettye Caldwell and her colleagues, if parents Tim and Tina read to their child at least three times a week, they will be demonstrating:
a. parental emotional and verbal responsiveness. b. avoidance of punishment. c. organization of the physical environment. d. opportunities for variety in stimulation.