In a laboratory experiment investigating the effects of acoustic noise on reading comprehension, a cognitive psychologist utilized an independent groups design, where different participants were assigned to either a quiet condition or a noisy condition. The researcher is concerned that participant variables (such as individual differences in reading ability) between the two groups may have confounded the results.
Outline two ways in which the psychologist could modify the experimental design of this study to address this issue.
Modification 1:
Modification 2:
689 exam-style questions on AQA A Level Psychology Scientific processes. Each one has a worked solution and a mark scheme showing where the marks go.