Question

Compare and contrast:

1. Between-subjects with within-subjects designs

2. Small N designs with large N designs.

In what circumstances would you use the within-subjects design and in what circumstances would you use the large N design?

Answer 1

1. In a between-subjects design, the various experimental treatments or levels of the independent variable are given to different groups of subjects. For example, .a researcher wanted to assess the impact of a yoga-based intervention on academic performance. Using a between-subjects design, she could create two groups of participants - one receiving the intervention and the other receiving no intervention - who would then be compared. On the other hand, in within-subjects design, the same subjects perform at all levels of the independent variable. Using the same example as above, in case of the within-subjects design, the researcher would first assess all the participants before the intervention and after the intervention and then find if there has been any significant rise in performance.

Please post the other questions separately.