Which of the following best explains how to find the test statistic for the one-sample sign test?
A. Scores above the median are assigned a plus sign (+); scores below the median are assigned a negative sign (–); the test statistic is the number of pluses or minuses, whichever occurs most often.
B. Scores are correlated as either positive (+) or negative (–); the test statistic is the extent to which scores are positively or negatively correlated.
C. Scores are coded as being consistent (+) or inconsistent (–) with the null hypothesis; the test statistic is the number of pluses or minuses, whichever occurs most often.
D. The variability of scores is compared with the variance stated by the null hypothesis; larger variability is considered a sign that the data are significant.
Ans: A
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