It is appropriate to use a t-Test with single-system data when:
A)The outcome variable is at the nominal level of measurement.
B)The data in each phase have a skewed distribution.
C)The baseline data are autocorrelated.
D)None of these.

Question

Quizplus · Accepted Answer

A t-Test is not appropriate for single-system data because there is no comparison group. Option A is incorrect because a nominal level of measurement does not determine the appropriateness of a t-Test. Option B is also incorrect because the distribution of data in each phase does not determine the appropriateness of a t-Test. Option C is incorrect because autocorrelation affects the validity of statistical tests, but a t-Test is not appropriate for single-system data regardless of autocorrelation.

It Is Appropriate to Use a T-Test with Single-System Data