Exam 15: Nonparametric Statistics

The ____ should be used when (1)the scores for the dependent variable are in the form of ranks, (2)the independent variable is between-subjects,and (3)the independent variable has three or more levels.

As long as the number of ties is minimal,the test statistics will not be affected greatly by tied ranks.

The strength of the relationship following a statistically significant ______ can be analyzed using the concordance coefficient.

Many parametric tests are resistant to outliers.

When the data are analyzed using the Mann-Whitney U test,the observed U statistic is statistically significant if it is ____ the critical U.

The strength of the relationship following a statistically significant _____ can be analyzed using the matched-pairs rank biserial correlation coefficient.

In cases where a tie occurs in rank scores,the tied scores are discarded.

Some researchers have argued that once a rank order is complete,traditional parametric tests can be used to analyze the data.

A researcher examined the relationship between gender and attitudes toward drinking alcohol.The researcher obtained the following data: What is the U statistic for this data set?

Which of the following is not a requirement for the Wilcoxon ranked-sum test?

Another name for nonparametric statistical tests is a(n)_____.

Distribution-free tests are used when _____.

Which of the following research designs is appropriate for the Wilcoxon rank sum test?

The Wilcoxon signed-rank test is the nonparametric counterpart of one-way repeated measures analysis of variance.

When one or both sample sizes are smaller than 10 and the independent variable has two and only two values and is between-subjects in nature,then the data can be analyzed using the Mann-Whitney U test.

Nonparametric tests can be used to analyze _____ variables that are measured on a(n)_____ level.

Distinguish between parametric and nonparametric statistics.

The Spearman rank-order correlation is typically used to analyze the relationship between two variables when:

The ____________________ involves converting scores to ranks,then analyzing the rank scores using standard parametric tests.

When the null hypothesis is rejected using a nonparametric statistic applied to more than two groups,how is the nature of the relationship between the independent and dependent variables assessed?