An experiment was performed to investigate the effect of sleep on attention performance. People were matched on all relevant characteristics and then randomly assigned to a group. Participants assigned to Group 1 slept for 8 hours every night. People in Group 2 slept for 5 hours every night. After following this sleeping pattern for two weeks, all participants completed a computer attention task. Explanation of Variables: Group - Group 1 slept for 8 hours every night. People in Group 2 slept for 5 hours every night Hours - Number of hours spent at work (daily) Prefer - Favorite time of day (M= morning, A= Afternoon, N= Nighttime ) ATT Score - performance on a computer attention task (the higher score represents better task performance). - Identify the IV and DV, and suggest an experimental hypothesis for this study - Calculate the mean, mode, median, range and standard deviation for the ATT variable for group 1 versus group 2 - Represent the variables for group 1 and group 2 graphically drawing an appropriate graph - Conduct the appropriate t-test to examine the effect that sleep time has on attention performance. Include your calculations (hand calculations or output from statistical software) - Using both the descriptive and inferential statistics, describe in your own words what the results show about the effect that sleep time has on attention performance - Investigate the relationship between Hours at work (Hours) and attention performance (ATT Score). Perform the appropriate statistical analysis. Include your calculations (hand calculations or output from statistical software) and justify why you selected this particular test - Describe in your own words what the results show about the relationship between hours at work and attention performance - Identify at least three potential ethical issues in the research study described above and explain how these issues could be dealt with An experiment was performed to investigate the effect of sleep on attention performance. People were matched on all relevant characteristics and then randomly assigned to a group. Participants assigned to Group 1 slept for 8 hours every night. People in Group 2 slept for 5 hours every night. After following this sleeping pattern for two weeks, all participants completed a computer attention task. Explanation of Variables: Group - Group 1 slept for 8 hours every night. People in Group 2 slept for 5 hours every night Hours - Number of hours spent at work (daily) Prefer - Favorite time of day (M= morning, A= Afternoon, N= Nighttime ) ATT Score - performance on a computer attention task (the higher score represents better task performance). - Identify the IV and DV, and suggest an experimental hypothesis for this study - Calculate the mean, mode, median, range and standard deviation for the ATT variable for group 1 versus group 2 - Represent the variables for group 1 and group 2 graphically drawing an appropriate graph - Conduct the appropriate t-test to examine the effect that sleep time has on attention performance. Include your calculations (hand calculations or output from statistical software) - Using both the descriptive and inferential statistics, describe in your own words what the results show about the effect that sleep time has on attention performance - Investigate the relationship between Hours at work (Hours) and attention performance (ATT Score). Perform the appropriate statistical analysis. Include your calculations (hand calculations or output from statistical software) and justify why you selected this particular test - Describe in your own words what the results show about the relationship between hours at work and attention performance - Identify at least three potential ethical issues in the research study described above and explain how these issues could be dealt with
