Exam vocab words chapter nine

Question 1

Parametric test

Answer 1

A statistical procedure that requires that the characteristic studied be normally distributed in the population and that the researcher have interval data.

Question 2

Nonparametric test

Answer 2

A statistical procedure that makes no assumptions about the way the characteristic being studied is distributed in the population and requires only ordinal or nominal data.

Question 3

Power of a test

Answer 3

The ability of a statistical test to reject the null hypothesis when it is actually false and should be rejected.

Question 4

Observed frequencies

Answer 4

In a chi-square analysis, the results that are actually observed when conducting a study.

Question 5

Expected frequencies

Answer 5

The cell frequencies expected under the terms of the null hypothesis for chi-square.

Question 6

Chi-square test

Answer 6

A non-parametric test of significance whereby expected frequencies are compared against observed frequencies, one-way and two-way.

Question 7

Median test

Answer 7

A nonparametric test of significance for determining the probability that two random samples have been drawn from populations with the same median.