Question

DeShaun Watson is very excited about the within-subjects approach. He says, “I’ll never need to run large numbers of subjects, or opposing defenses again”. However, DeShaun has forgotten that within-subjects designs inside the game may consist of four objections. What are those Objections? Give an example of each of these four objections?

Answer 1

The four main objections against the within subjects approachable as follows:

1. These designs may be useless, as the two groups are dependent. But in some cases, groups need to be independent and so the design becomes invalid.

2. These designs maybe impossible, as one may not b able to find the correct representative sample from the population of interest.

3. These designs are likely confounded by order effects. Practice effect or fatigue can impact responses of the participants.

4. These designs are impractical when excessive subject time spent in an experiment, such as in the case of longitudinal studies.