In order to test experimental data via the ordinal T test, the design must be
A) between-subjects with independent assignment of subjects
B) repeated-measures
C) matched-subjects
D) both b and c, but not a

Question

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The ordinal T test is best suited for experimental designs that involve either matched-subjects or repeated-measures. These designs are similar in that they both involve a comparison of scores obtained by the same group of subjects under different conditions. The only difference is that matched-subjects designs involve the comparison of scores obtained by different groups of subjects who are matched according to important variables, while repeated-measures designs involve the comparison of scores obtained by the same group of subjects under different conditions (or at different points in time). In both cases, the ordinal T test is appropriate because it is specifically designed to compare ordinal data obtained from the same group of subjects. Between-subjects designs with independent assignment of subjects are not as appropriate for the ordinal T test because they involve the comparison of scores obtained from different groups of subjects.

In Order to Test Experimental Data Via the Ordinal T