Exam 16: Non-Parametrics Revisited: the Ordinal Case

For the questions below, use the following: A researcher used a one-group, repeated-measure design, and established the following data: Scores Ranked by Rows Scores Ranked by Rows Subject \# Measure 1 Measure 2 Measure 3 1 1 2 3 2 1 2 3 3 2 1 3 4 2 1 3 5 3 2 1 6 1 2 3 7 1 2 3 8 3 1 2 9 1 2 3 10 2 3 1 -Which statistical test should be used?

One should not use the Spearman r on skewed interval data, unless the data could be converted into ordinal form.

The more power a test has, the more likely it is to produce significant results.

For questions below, use the following: A researcher sets up a two, matched-subjects experimental design, and collects ordinal measures on the subjects. The data follow: Group 1 Group 2 1 4 2 5 3 6 7 8 9 11 10 12 13 13 8 7 11 9 12 10 4 3 5 2 6 1 -Should Ho be rejected? For questions 101 through 105, use the following: A researcher sets up a three-group, between-subjects design with random assignment of all subjects. Because the interval measures on the dependent variable are badly skewed, the measures are rank-ordered. The data follow:

The ordinal T test shown in the text requires at least

In order to test experimental data via the Friedman (ANOVA by ranks), the design must be

If ordinal data are obtained from a two-group, between-subjects design (with random assignment of all subjects), the appropriate test would be

Compared to the parametric tests, the non-parametrics have

For the ordinal T on small samples, with a calculated value of 4.13 and a critical, tabled value of 6.00, then

The H test was created by

All parametric tests are less powerful than the non-parametric.

For questions below, use the following: A researcher sets up a three-group, repeated-measures design with random assignments of all subjects. All measures were originally taken in ordinal form. The data follow: Group 1 Group 2 Group 3 1 3 5 2 4 6 7 9 11 8 10 12 13 14 15 16 18 17 -Should Ho be rejected?

Whenever there is an increased probability of accepting null when null should have been rejected, then