In the one group pretest posttest design, the threats to internal validity include the effects of _____
a. history c. testing
b. maturation d. all of these
D
All of these threaten the internal validity of this type of study.
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The disease-prone personality is characterized by
a. mania. b. extraversion. c. hostility. d. Type-B attributes.
Suppose that a girl is athletically very active in junior high school gym classes or sports. Vigorous athleticism will likely ____ her menarche
a. delay or retard the occurrence of b. hasten the occurrence of c. have no effect on d. masculinize
Funeral practices are
a. ritualistic in nature b. symbolic in character c. social activities d. all of these e. none of these
As an assignment for your Experimental Psychology class you have been asked to conduct a study that will yield a causal relationship between the independent and dependent variables. To complete this assignment, you must use the ________ method
a. experimental b. observational c. correlational d. correlational or experimental