Which of the following assumptions is common to all parametric statistics?
A)There are no common assumptions.
B)The population of dependent scores,regardless of what kind of scores they are,forms a normal distribution.
C)The dependent scores must be interval or ratio scores,regardless of whether the population of scores forms a normal distribution.
D)The population of dependent scores,which must be interval or ratio scores,forms a normal distribution.

Question

Quizplus · Accepted Answer

The assumption that the population of dependent scores, which must be interval or ratio scores, forms a normal distribution is common to all parametric statistics. This assumption allows for the use of inferential statistical tests that assume normality, such as t-tests and ANOVA.

Which of the Following Assumptions Is Common to All Parametric