Interpreting Data on Sleep Deprivation and Cognitive Performance

Researchers conducted a study to examine the effect of sleep deprivation on cognitive performance. They recruited 40 college students and divided them into two groups: one group was allowed to sleep for 8 hours, while the other group was restricted to 4 hours of sleep. After the sleep manipulation, both groups completed a series of cognitive tasks, including memory recall and problem-solving exercises. The researchers collected data on the number of correct responses for each task and the time taken to complete them.

Using the data from this study, answer the following question:

Discuss how the researchers could interpret the data to evaluate the impact of sleep deprivation on cognitive performance. Specifically, consider both the quantitative and qualitative aspects of the findings.