What was the design of the Andrade experiment?

The Andrade experiment utilized a laboratory experiment with an independent measures design. This choice is correct because the study aimed to investigate the effect of doodling on memory. Participants were divided into different groups where one group doodled while listening to a monotonous message, and the other group simply listened without doodling. By implementing an independent measures design, each participant only experienced one condition, allowing for a direct comparison of the memory recall between those who doodled and those who did not. This method helps reduce potential confounding variables that could arise from having the same participants in both conditions, such as practice effects or fatigue.

The context of the design emphasizes how the independent measures can support the conclusion that doodling may help with retaining information, as differences in performance can be attributed more confidently to the activity of doodling itself rather than variables relating to repeated testing.