In a 2 X 3 between subjects factorial design, how many null ...

[clmills979]

In a 2 X 3 between subjects factorial design, how many null hypotheses are there?
 
  a. two c. five
  b. three d. six

Question 2

In a between subjects factorial experiment with two independent variables, how many null hypotheses are there?
 
  a. one c. three
  b. two d. four

[srodz]

Answer to Question 1

B
There are two independent variables in the study. There would be a null hypothesis for the main effect of each of these variables and one for the interaction between them, for a total of three.

Answer to Question 2

C
There is one null hypothesis for each main effect and one for the interaction. There are two main effects if there are two independent variables. Therefore, there are 3 null hypotheses in all.

[clmills979]

Thank you!

[srodz]

Happy to help