Reactivity presents the biggest problem in ____
a. ?case studies
b. ?experiments
c. ?archival studies
d. ?naturalistic observations
ANSWER:
d
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Dave is driving along the interstate when he sees a stranded motorist. Dave had a flat tire just last week, so he knows how it feels to be stranded. He decides to stop and help the motorist. Which theory of helping behavior best explains why Dave stopped to help??
a. ?arousal: cost-reward b. ?social facilitation c. ?evolutionary d. ?empathy-altruism
William Perry holds that early adulthood is a period when reasoning moves from ______________.
Fill in the blank(s) with the appropriate word(s).
Jan is using a driving simulation to study driving errors when distracted. The extent to which Jan’s simulation across various sampling populations yields similar results is referred to as her experiment’s ______.
A. reliability B. internal validity C. generalizability D. placebo effect
The seminar room in the library are identifed by letters (A, B, C, and so on). A professor records the number of classes held in each room during the fall semester. If these values are presented in a frequency distribution graph, what kind of graph would be appropriate?
a. a histogram b. a bar graph c. a polygon d. a stem and leaf plot