A number that characterizes the "middleness" of an entire distribution is _____
a. a measure of central tendency
b. a measure of variability
c. an inferential statistic
d. the standard deviation
a
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Three of these techniques allow scientists to observe the
activity of parts of the brain without doing any damage at all. Which technique would cause some degree of damage to the living brain? a. EEG. b. fMRI. c. PET scan. d. ablation.
According to research on behavioral decision theory, adolescents often decide to engage in behavior that seems risky to adults because adolescents
A. wish to assert their independence from adults in every possible way. B. cannot consider as many consequences for their actions as adults can. C. have thinking processes that are still predominantly preoperational. D. have different values and priorities than adults.
Which type of study examines changes in a person or group of people over an extended period of time?
a. cohort b. preexperimental c. longitudinal d. historical control
Jen talks, walks, and eats rapidly. She often agrees to do more things than she has time for because she believes that with enough effort she can overcome any obstacle. Jen would probably be classified as
a. a Type A personality. b. a Type B personality. c. a low sensation seeker. d. experiencing a life crisis.