A researcher measures attractiveness ratings of a male confederate among 30 women who were told the confederate was either single,dating,or married (n = 10 per group).What are the degrees of freedom for error for the one-way between-subjects ANOVA?
A) 2
B) 3
C) 27
D) 28

Question

Quizplus · Accepted Answer

The degrees of freedom for error for a one-way between-subjects ANOVA is calculated by subtracting the degrees of freedom for the treatment (number of groups minus 1) from the total degrees of freedom (total sample size minus 1). In this case, there are 3 groups (single, dating, married) so the degrees of freedom for the treatment is 3 - 1 = 2. The total sample size is 30, so the total degrees of freedom is 30 - 1 = 29. Therefore, the degrees of freedom for error is 29 - 2 = 27.

A Researcher Measures Attractiveness Ratings of a Male Confederate Among