Which of the following is a potential disadvantage of within-groups designs?

- demand characteristics
- nonequivalent groups
- requirement of more participants
- less statistical power

The answer is: demand characteristics

Demand characteristics refers to a situation when the subjects in an experiment change their own behavior in order to fulfill the expectations of the researchers.

In within group designs, same subjects are required to follow several different tests by the researchers. When this happen, there will be some subjects will be able to catch up about the things that the researchers want to find out and may change their behavior in order to be seen as favorable by the researchers.

work yay..other than that pretty good actually it hot though (≧▽≦)

well it depends i think people around the world are coming around to gay marriage. but if you are talking abortion then wow, so much to talk about. such as men thinking they have the right to choose if women can, the fact there are health concerns if the women can't get one, and many more arguments to discuss. so i would definitely say abortion would be a much more interesting topic.