Dizygotic (DZ) twins share__________percent of their genes.
A. 100
B. 75
C. 50
D. 25
Answer: C
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Dr. Kelly is conducting an assessment on 6-year-old Stephanie to determine if her level of anxiety meets the criteria for obsessive compulsive disorder. Dr. Kelly is likely to also want to rule out what other disorder?
a. autism spectrum disorder b. conduct disorder c. schizophrenia d. bipolar disorder
In one study, college students who learned stress inoculation exhibited all of the following EXCEPT
a. less depression. b. less anxiety. c. better self-esteem. d. more passive behaviors.
Regarding physical maturation, it has been shown that
a. the developmental sequence varies across cultures. b. the sequence varies from individual to individual. c. while sequence varies, rates are uniform among kids. d. all children go through the same developmental sequence.
If within-groups variance is large relative to between-groups variance, then there is increased probability of:
a. rejecting the null hypothesis. b. making a Type I error. c. making a Type II error. d. accepting the research hypothesis.