The advantage of the between subjects design is that in this ...

[xclash]

The advantage of the between subjects design is that in this design, _____.
 
  a. establishing equivalent groups not a problem
  b. there is more internal validity
  c. multiple treatment effects are not a problem
  d. fewer people need to be recruited as participants

Question 2

The advantage of the within subjects design is that in the within subjects design _____.
 
  a. the people in the control condition are just like the people in the experimental condition
  b. serving in the control condition never changes the participants in any way
  c. the order in which treatments are experienced is unimportant
  d. no control condition is necessary

[joechoochoy]

Answer to Question 1

C
The between subjects design has different people in the control and experimental conditions. Each participant experiences only one condition; therefore order effects are not a problem.

Answer to Question 2

A
The advantage of the within subjects design is the great similarity between the participants in the control and experimental conditions: They are the same people