What type of research design was utilized in the Andrade experiment?

The Andrade experiment utilized a laboratory experiment with independent measures design, which is characterized by the manipulation of an independent variable to observe its effect on a dependent variable in a controlled environment.

In the Andrade study, participants were tasked with coloring a complex shape while simultaneously listening to a monotonous message. This setup allowed researchers to manipulate the focus of attention to see how it affected the participants’ ability to recall information later. The use of an independent measures design means that different groups of participants were assigned to different conditions, ensuring that the results were not influenced by the same individuals participating in multiple conditions.

This structure enhances the validity of the findings, as it reduces the potential for order effects, where the sequence of tasks might influence performance. Overall, the design choice effectively tested the hypothesis regarding the effects of doodling on memory recall, making it appropriate for the aims of the study.