Exam 16: Non-Parametrics Revisited: the Ordinal Case

For questions below, use the following: A researcher sets up a one-group, repeated-measures experimental design. Because the original, interval measures were badly skewed the data were converted into ordinal form. Subject \# Pre-Rank Post-Rank 1 1 1 2 3 2 3 2 7 4 5 3 5 7 4 6 6 8 7 8 9 8 10 5 9 9 6 10 4 10 -Indicate the critical, tabled value of T at .01

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 -Calculate the appropriate statistical value.

For questions below, 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: Group 1 Group 2 Group 3 1 3 5 2 4 9 6 8 13 7 12 16 10 14 17 11 15 18 -Which statistical test should be used?

If a distribution of interval scores is badly skewed, the scores should be ranked and ordinal tests performed.

The Type 2 error is the probability of being wrong whenever the null hypothesis is rejected.

For questions below, use the following A researcher used a three, matched-subjects experimental design, and establishes the following data: Scores Ranked by Rows Group 1 Group2 Group 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 -Calculate the appropriate statistical value.

The Spearman r should only be used to test the hypothesis of

For questions below, 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: Group 1 Group 2 Group 3 1 3 5 2 4 9 6 8 13 7 12 16 10 14 17 11 15 18 -Calculate the appropriate statistical value.

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 -Calculate the appropriate statistical vale.

The Kruskal-Wallis H is the ordinal equivalent of which interval test?

Ordinal test require more assumptions than nominal tests.

For questions below, 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: Group 1 Group 2 Group 3 1 3 5 2 4 9 6 8 13 7 12 16 10 14 17 11 15 18 -Should Ho be rejected?

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 -Indicate the number of degrees of freedom.

Using a non-parametric test, when a parametric test should have been used, tends to

For questions below, use the following A researcher used a three, matched-subjects experimental design, and establishes the following data: Scores Ranked by Rows Group 1 Group2 Group 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 -Which statistical test should be used?

For questions below, 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: Group 1 Group 2 Group 3 1 3 5 2 4 9 6 8 13 7 12 16 10 14 17 11 15 18 -Indicate the critical, tabled value at .05.

The ordinal test for assessing the difference among three or more correlated samples, is the

The concept of "greater than" or "less than" is at the heart of the ordinal case.

In order to test experimental data via the ordinal T test, the design must be

Of the following, which does not belong with the others?