A nonparametric test should be used if
A) the sample size is small.
B) the level of measurement is nominal.
C) the scores are normally distributed.
D) the concern for a Type II error is great.

Question

Quizplus · Accepted Answer

A nonparametric test is appropriate when the level of measurement is nominal or ordinal, as these types of data do not have a meaningful numerical value. Nonparametric tests do not make any assumptions about the distribution of the data, so the choice of a nonparametric test is not dependent on whether the scores are normally distributed or not. The size of the sample and the concern for a Type II error are also not determinants for choosing a nonparametric test.

A Nonparametric Test Should Be Used If