LibGuides: EDR-8202 v4: Week 7 Resources

Week 7 Resources

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Friedman test
Frey, B. (2018). The SAGE encyclopedia of educational research, measurement, and evaluation (Vols. 1-4). Thousand Oaks,, CA: SAGE Publications, Inc. doi: 10.4135/9781506326139
This source describes the non-parametric version of the repeated measures analysis of variance. The Friedman test is used when one or more of the repeated measures ANOVA assumptions are not met.
Kruskal Wallis
Frey, B. (2018). The SAGE encyclopedia of educational research, measurement, and evaluation (Vols. 1-4). Thousand Oaks,, CA: SAGE Publications, Inc. doi: 10.4135/9781506326139 This source describes the non-parametric version of the one-way analysis of variance. The Kruskal-Wallis test is used when one or more of the ANOVA assumptions are not met.
Mann-Whitney test
Frey, B. (2018). The SAGE encyclopedia of educational research, measurement, and evaluation (Vols. 1-4). Thousand Oaks,, CA: SAGE Publications, Inc. doi: 10.4135/9781506326139
This source describes the non-parametric version of the independent samples t - test. The Mann-Whitney test is used when one or more of the t - test assumptions are not met.
Spearman correlation coefficient.
McHugh, M. (2018). Spearman correlation coefficient. In B. B. Frey (Ed.), The SAGE encyclopedia of educational research, measurement, and evaluation (pp. 1555-1558). SAGE.
This correlation statistic is used to measure the strength of association between to variables measured in the ordinal level.
Wilcoxon signed ranks test
Frey, B. (2018). The SAGE encyclopedia of educational research, measurement, and evaluation (Vols. 1-4). Thousand Oaks,, CA: SAGE Publications, Inc. doi: 10.4135/9781506326139
This source describes the non-parametric version of the dependent samples t - test, which is the Wilcoxon signed test. The major assumption of this test is that the data are at least at the ordinal level of measurement.

Supplemental Resources

Academic Success Center (ASC). (2020). Statistics resources. National University.
This LibGuide includes all of the statistics resources curated by NU's Academic Success Center. Use the headings on the left side of this ASC page to navigate to your particular area of need.
Presenting Statistics in Text
This page from the ASC offers support on how to use appropriately the different elements of statistics within text that you write.