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Exam 15: Nonparametric Statistics

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Question 41

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Under what conditions are the Wilcoxon rank sum test and the Mann-Whitney U test used to analyze the relationship between two variables?

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The Wilcoxon rank sum test and the Mann-...

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Question 42

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Similar to the analysis of a Pearson correlation,the nature of the relationship when using a Spearman correlation is indicated by the sign of the correlation coefficient.

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Question 43

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The Spearman rank-order correlation is a nonparametric alternative to which parametric test?

The strength of the relationship for the Wilcoxon signed-rank test can be measured using the ____.

Of the two major types of parametric tests,the ____________________ is used more often.

Friedman analysis of variance by ranks involves first rank ordering the means for each experimental group.

Most of the parametric tests that we have considered have a nonparametric counterpart in the sense that the structure of the _____ is comparable across the two methods of analysis.

According to the assumptions of the rank tests,ties are viewed as the result of

If one wants to compare the rank ordering of scores as a function of different groups,then a(n) _____ should be used.

For the Wilcoxon signed-rank test,in order for the null hypothesis to be rejected,the observed value of T must be equal to or less than the critical value.

A benefit of many nonparametric statistical tests is their relative lack of sensitivity to:

The nonparametric counterpart to the one-way repeated measures analysis of variance is the ____________________.

In the Wilcoxon sign-rank test,the strength of the relationship can be measured with the matched-pairs rank biserial correlation coefficient.How is the calculated value interpreted for the strength of the relationship?

Following a significant Mann-Whitney U test,the strength of the relationship between two variables may be measured using ____.

A researcher examined the relationship between gender and attitudes toward drinking alcohol.The researcher obtained the following data: Compared to a critical value of 2.0,the decision should be to _____ because the observed value is _____ than the critical value.

The nonparametric counterpart to the independent groups t test is the ____________________ test.

What is the rank transformation approach?

A benefit of the nonparametric tests is the lack of sensitivity to ____________________.

Nonparametric statistical tests are a class of statistics that,in general,make fewer distributional assumptions than parametric statistics.

You are given the following data: Subject 1 2 3 4 5 Score 10 12 8 10 2 Rank -- -- -- -- -- The ranks for the scores of subjects 1-5 are ____.