A social psychologist interested in cultural differences compared women of two ethnic groups on a Role Approval Index on which high scores indicated high degrees of approval of one's own social role. The results were as follows.
-If a t test for independent means is conducted,how many degrees of freedom will be used to locate the cutoff score in the t table?

Question

A social psychologist interested in cultural differences compared women of two ethnic groups on a Role Approval Index on which high scores indicated high degrees of approval of one's own social role. The results were as follows. 
-If a t test for independent means is conducted,how many degrees of freedom will be used to locate the cutoff score in the t table?

Quizplus · Accepted Answer

The degrees of freedom for a t-test for independent means is calculated by adding the sample sizes of both groups and subtracting 2. This accounts for the estimation of two means from the data, hence the formula: (n1 - 1) + (n2 - 1).

A Social Psychologist Interested in Cultural Differences Compared Women of Two