How do you determine the most appropriate non-parametric test for a specific research question and dataset? explain?...
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James K.
Which of the following nonparametric methods can be considered an extension of the Mann-Whitney U Test? Wilcoxon Signed Rank Test Kruskal-Wallis Test One-way ANOVA Chi-square Test The Kruskal-Wallis Test is the nonparametric equivalent of the: Paired difference t-test Two independent samples t-test Pearson's correlation coefficient One-way ANOVA The Mann-Whitney U test is best used when the measurement scale of the characteristic of interest is: Nominal Ordinal Interval or ratio b and c (iv) Which of the following tests should be used to answer the question: Is sex significantly associated with wearing seatbelts? Chi-square test Independent t-test Mann-Whitney U test Paired t-test (v) A weight-loss program enrolled 45 heterosexual couples. Did the husbands lose more weight than their wives? The data (weight loss) are normally distributed. Which is the most appropriate statistical test to answer the question? Mann-Whitney U test Paired t-test Kruskal-Wallis test Independent t-test (vi) Determine if a relationship exists between race (white, black, Asian, other) and satisfaction with the economy (on a scale 1 to 10 where 1=extremely unhappy and 10=extremely happy). Satisfaction is not normally distributed and n=47. One-way ANOVA Kruskal-Wallis test Mann-Whitney U test Independent sample z test
Adi S.
- t Tests and Analysis of Variance 1. What is the appropriate combination of levels of measurement of two variables for using either an independent t test or a dependent t test? 2. Why do the sample size and subsample size comparability requirements of the independent t test frequently make it ideally suited for social work research? 3. What is a nonparametric alternative to the dependent t test that might be used if the dependent variable can be regarded as a little less than interval level? 4. Explain why a t test that does not result in a finding of statistical significance may still produce a finding that is useful for the social work practitioner. Provide an example. 5. (When would we use one-way ANOVA rather than the two-sample independent t test?
Madhur L.
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