The Assumptions of the Wilcoxon Signed-Rank Test Are That

question 55

Multiple Choice

The assumptions of the Wilcoxon signed-rank test are that:

• A) the difference between pairs of scores can be ranked, participants are randomly selected, and the population distribution of differences is symmetric.
• B) the mean difference between pairs of scores is 0, participants are randomly selected, and the population is symmetric.
• C) participants are randomly selected and the population is symmetric.
• D) the mean of the population of difference scores is 0 and its distribution is symmetric.

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