Reah, a developmental psychologist measures aggressive behavior in a group of second graders before and after viewing an aggressive cartoon. This design would best represent a(n) repeated measures design
What is a repeated measures design?
A repeated measures design is a type of research design in which multiple measures of the same variable are taken on the same or matched subjects under different conditions or over two or more time periods. In a longitudinal study, for example, repeated measurements are collected to assess change over time.
The crossover study is a popular repeated-measures method. A crossover study is a long-term study in which subjects receive a variety of treatments (or exposures).
Because the model evaluates how a subject responds to all of the treatments, the subjects are their own controls in repeated measures designs.
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