LabReport 1

LabReport 1 - Stephanie Lee 603904125 Life Sciences 2...

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Stephanie Lee 603904125 Life Sciences 2 Section 2J Kent Vu January 5, 2011 How does hours of sleep prior to taking the test affect memory? Introduction A considerable amount of experimental evidence suggests that sleep plays a critical role in memory processes. 1 According to the National Sleep Foundation, recommended sleep is typically around eight hours for students so it would be interesting to examine whether getting a little more than half of this recommendation would significantly decrease performance on visual memory tests. The null hypothesis is that the difference in mean number of pictures recalled between the two separate sleep hours groups (5 versus 8 hours) is not statistically significant enough to establish an association between the variables of sleep prior to test-taking and memory. Put more simply, the difference in memory between sleep groups is due to chance and subjects from both groups will remember images equally well. If results are statistically significant, they may shift our approaches to preparing for comprehensive exams. If less sleep is truly detrimental to recalling information, students may opt to spend more time resting instead of staying up the night before a big test cramming since immediate memory storage occurs less in subjects who have had less sleep.
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Materials and Methods The population of interest is students ages 18-23 and the sample group will be those
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LabReport 1 - Stephanie Lee 603904125 Life Sciences 2...

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