In an ABA design, the null hypothesis states that _____. a. ...

[ishan]

In an ABA design, the null hypothesis states that _____.
 
  a. there is no difference between the mean performance during A and B
  b. there is an increase in performance from A to B and then a decrease from B back to A
  c. performance during B is lower than performance during A
  d. there is no difference between the groups that get A and the groups that get B

Question 2

In a one factor repeated measures ANOVA, the mean square is calculated for the _____ variance.
 
  a. between subjects and total
  b. between subjects and within subjects
  c. within subjects treatment and within subjects error
  d. all of these

[JCABRERA33]

Answer to Question 1

A
The ABA design is a repeated measures design. The null hypothesis states that there will be no differences in performance among any of the treatment groups.

Answer to Question 2

C
There is no need to calculate the mean square for either the between subjects variance or the total variance because they are not required for the calculation of F.

[ishan]

Excellent

[raenoj]

Thanks for the timely response, appreciate it