Author Question: The null hypothesis for a t test states that all differences between the groups A) are due to ... (Read 68 times)

nmorano1 · **on:** Jun 20, 2018

The null hypothesis for a t test states that all differences between the groups

A) are due to extraneous variables and therefore the difference is significant
B) are due to random assignment and therefore are not significant
C) are due to chance, not the operation of the IV
D) are due to the operation of the IV, and not chance

Question 2

In the analysis of a factorial design with two independent variables, the total variance is partitioned into ________ components.

a. two
b. three
c. four
d. eight
e. it depends on the number of dependent variables