Question

what are the upside and downsides for using either a within subjects or between subjects design?

Answer 1

upside and downsides for using either a within-subjects or between subjects design

(1)Between-subjects minimizes the learning and transfer across conditions.

(2)Between-subjects studies have shorter sessions than within-subject ones.

(3)Between-subject experiments are easier to set up, especially when you have multiple independent variables.

(4)Within-subject designs require fewer participants and are cheaper to run.

(5)Within-subjects design minimizes the random noise.

conclusion: Each of these types of experimental design has its own advantages and disadvantages; within-subjects design requires fewer participants and increases the chance of discovering a true difference among your conditions; between-subjects designs minimize the learning effects across conditions, lead to shorter sessions, and may be easier to set up and analyze.