Which of the following assumptions are common to all parametric statistics?
A)There are no common assumptions.
B)The population of dependent scores forms a normal distribution, regardless of what kind of scores they are.
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 a) must be interval or ratio scores and b) must form an approximately normal distribution.

Question

Quizplus · Accepted Answer

Parametric statistics typically assume that the dependent scores are on an interval or ratio scale and that these scores are distributed normally within the population. These assumptions allow for the application of specific statistical tests that infer parameters about the population.

Which of the Following Assumptions Are Common to All Parametric