The use of parametric statistics such as the t-test or analysis of variances (ANOVA) normally requires that the data be at the ________ level of measurement.
A) nominal
B) interval
C) ratio
D) either interval or ratio

Question

Quizplus · Accepted Answer

Parametric statistics such as the t-test or ANOVA require data to be at the interval or ratio level of measurement. These levels of measurement involve numerical data with equal intervals between values or a true zero point, which is necessary for conducting accurate statistical analyses. Nominal data, on the other hand, are categorical and cannot be numerically measured, and therefore are not appropriate for parametric statistics.

The Use of Parametric Statistics Such as the T-Test or Analysis