Stanley conducts a study in which he assesses teasing in a sample of first-graders during the first week of school and again three months later. Because the study is longitudinal, Stanley has to worry about which of the following threats to internal validity?
a. Selection
b. Temporal generalization
c. Demand characteristics
d. Maturation
d. Maturation
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During his college years, Jacob often experienced episodes of intense fear accompanied by the physical sensations of a heart attack. Jacob might have experienced a ________ disorder while in college
a. personality b. depressive c. panic d. eating e. somatic symptom
How well a list of words is remembered could be predicted from the extent ______ during stimulus presentation.
A. of the evoked responses in the cingulate cortex B. of activation that occurred in the hippocampus C. of activation that occurred in the septum D. of the evoked responses in the hypothalamus
According to Dr. Autumn, Depo-Provera is
A) a contraceptive implant. B) an injectable hormonal contraceptive. C) a birth-control pill for men. D) a "day after" pill.
A student researcher wants to study the effect of ultraviolet light on fruit flies; however, when he proposes his research design
he states that he cannot have varying treatment conditions because the independent variable is not a type of therapy for the flies. As his advisor, you state that treatment conditions a) are levels of the independent variable, not necessarily treatment b) are levels of extraneous variables, not necessarily treatment. c) only apply to more advanced species, such as humans. d) only apply to more advanced species, such as mammals.