According to some estimates, approximately one in every ______ children born in the United States will develop an autism spectrum disorder
a) 13
b) 75
c) 110
d) 250
ANS: C
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Traditional psychoanalysis is probably most appropriate for patients who have
a. long-standing repressed memories. b. little motivation. c. poor verbal skills. d. little time and money.
An experimenter uses the pretest posttest design to test the effectiveness of a new drug in reducing joint pain. The null hypothesis would state that _____
a. affects hallucinations b. increases hallucinations c. the new drug does reduce hallucinations d. decreases joint pain
Dr. Esterson is studying the effect of caffeine on laboratory rats. He has decided that he will give the rats 100 milligrams of caffeine three times a day, and then run them through mazes at various points to see if
there is any change in the time it takes to complete the maze. Based on his review of existing research addressing this topic, Dr. Esterson believes that the rats will complete the maze the fastest immediately after they ingest the caffeine. Dr. Esterson's belief about the results he will find is called a(n): a. covariate. b. construct. c. theory. d. hypothesis.
You are pushing a stroller that has two babies in it. One boy, dressed in blue, and one girl, dressed in pink. Someone stops you tells you how beautiful your baby boy and girl are
Then they ask if they are "identical twins." You tell them they are not, but what are you thinking? a. It is impossible to have identical twins of different sexes. b. They could be identical; that was a great question. c. Fraternal twins are usually both girls. d. Fraternal twins are usually both boys.