The mean is the
A. 45th percentile
B. most commonly occurring score
C. arithmetic average
D. variability of scores
C
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When George creates a scatterplot that compares achievement test scores and grades in school, the points on the scatterplot fall roughly along a line that slants up and to the right. Based on his scatterplot, George can conclude that achievement test scores and grades in school:
a. are positively correlated b. are negatively correlated c. are only weakly correlated d. have a cause-and-effect relationship
While studying in the library, Kayleigh became very hungry and went to a vending machine which was empty, and to the cafeteria which was closed. So she drove home and cooked herself a meal and ate it, satisfying her hunger. This food-seeking behavior was initiated by a bodily need with her search being sustained and directed to various food sources until her need was met. This illustrates
a. motivation. b. behavioral dieting. c. the opponent-process theory. d. the Yerkes-Dodson law.
Groups are least effective in the decision-making process when
A. Complex and difficult decisions need to be made B. The situation is an emergency C. The cooperation of those in the group is needed to carry out the decision
A person's judgment or choices is also called ____.
A. A need B. An emotion C. An opinion D. A value E. A cultural creed