Degrees of freedom for the chi-square test of independence is determined by:
A) subtracting 2 from the number of cells there are (k - 2).
B) subtracting 1 from the number of cells there are (k - 1).
C) multiplying the number of rows minus 1 times the number of columns minus 1.
D) subtracting 1 from the number of participants that there are (N - 1).

Question

Quizplus · Accepted Answer

The degrees of freedom for the chi-square test of independence is equal to (number of rows-1) times (number of columns-1). This is because the expected frequencies for each cell are calculated using the row and column totals, which reduces the degrees of freedom by those values. Option A and B do not take into account the number of columns or rows, and option D is not relevant to this calculation.

Degrees of Freedom for the Chi-Square Test of Independence Is