A one-factor, between-subjects ANOVA involves three groups of five subjects each. The sums of squares within the three groups are ss1 = 10, ss2 = 20, and ss3 = 18. Therefore, the estimated standard error of the contrast defined by the weight vector w = [0, 1, -1] is ______.

According to research reported in the text, body-image satisfaction is lowest for:

a. girls at age 13 and boys at age 15 b. girls at age 15 and boys at age 13 c. girls and boys at age 13 d. girls and boys at age 15

Assuming that "all Southerners are uneducated" is an example of a social

Fill in the blank with correct word