Multiple Choice
A major disadvantage of within-subjects designs is that
A) they require more subjects
B) subject differences may obscure treatment effects
C) the effect of one treatment may alter the effectiveness of another
D) one must use fewer independent variables
Correct Answer:
Verified
Correct Answer:
Verified
Q38: Matching on pretest scores can<br>A) improve power<br>B)
Q39: Using a within-subjects design,<br>A) eliminates the effects
Q40: When subjects perform double duty in both
Q41: A major disadvantage of between subjects designs
Q42: Participants serve as their own controls in
Q43: If you are interested in order effects,
Q45: The matched pairs design establishes internal validity
Q46: Properly executed, the matched pairs design should
Q47: The matched pairs design has more power
Q48: You should never use a t test