One use of a regression equation is to increase the accuracy of predicting Y scores. What determines the proportion of the variability in the Y scores that is predicted by the regression equation?
A) ?r2
B) ?1 - r2
C) ?r
D) ?1 - r
A
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Le Bon’s theory, convergence theory, and emergent-norm theory are all theories of
a. social facilitation. b. deindividuation. c. crowd behavior. d. group performance. e. group entitativity.
Employers tend to use behavior-focused rating forms for performance reviews because
A. They rely on methods tested at assessment centers. B. They have been statistically verified through validation studies. C. Their focus on specific incidents produces fewer errors and biases. D. They are more likely to produce positive leader-member exchanges.
Interval or ratio data may be plotted as a _________
a. bar graph c. frequency polygon b. histogram d. b and c
According to the authors of your text, when the Bush administration received evidence that there were no weapons of mass destruction in Iraq—
but after they had already invested troops and money in the war—the administration quickly explained that now the war was focused on ousting Saddam Hussein and liberating the Iraqi people. In essence, the administration may have ________ as a means of reducing dissonance. a. added new cognitions b. changed its attitudes c. changed its behavior d. used self-persuasion