A method for finding the minimum number of dimensions to account for a large number of variables is called
a. correlational analysis.
b. multiple regression
c. factor analysis.
d. analysis of variance.
c
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Sing Tung is given a new drug. As a result, his normal sleep cycle is altered. He moves from an REM stage to NREM stages 1-2-3 and then abruptly awakens. The experimenter has recorded his brain activity. Which of the following is not characteristic of Sing Tung's altered sleep cycle?
A. A great deal of dream activity was present. B. Some alpha waves were present. C. Many high amplitude, slow brain waves were present. D. Muscle tone was similar to the awake stage.
Which of the following is a strategy that people use when confronted with the multiple audience dilemma?
A) delivering different messages through different channels of communication B) presenting opinions that are a compromise between the opinions of the two different audiences C) delaying delivery of a message until there is only one audience present D) all of the above
One major limitation of group-based research in earlier clinical research in abnormal psychology is the
A) over reliance on self-report measures. B) overuse of white college students as participants. C) failure to use blind conditions. D) inappropriate use of statistical procedures.
In a recent study, Mary found a correlation coefficient of .83 between the two variables, foot size and score on the math final. She concludes that these two variables have a strong ________ correlation
a. negative b. positive c. binary d. continuous