Question

A researcher is interested in looking at the effect of sleep and caffeine on physical performance. The researcher has each subject perform a series of 6 tests across a number of week. The researcher alters the amount of sleep the subject should receive (8 hours, 6 hours, and 4 hours) while also altering whether they drink coffee in the morning or they do not. These two factors are completely crossed to create the six conditions. Eight subjects were recruited for the study and performed a physical test in a lab. Higher scores on the test indicate better performance. Report your results, run all hypothesis tests, and provide a final summary of your results. How is this done within SPSS? Please help!

Subject	H8CN	H6CN	H4CN	H8CY	H6CY	H4CY
1	76	69	71	86	72	66
2	84	72	69	67	72	68
3	78	72	72	72	76	70
4	80	78	74	85	69	76
5	82	74	66	87	69	78
6	70	71	74	74	82	76
7	62	73	68	83	79	69
8	72	67	66	86	81	74

Answer 1

Prepare the columns as follows and perform the analysis

Hours   Coffee   Score
8   N   76
6   N   69
4   N   71
8   Y   86
6   Y   72
4   Y   66
8   N   84
6   N   72
4   N   69
8   Y   67
6   Y   72
4   Y   68
8   N   78
6   N   72
4   N   72
8   Y   72
6   Y   76
4   Y   70
8   N   80
6   N   78
4   N   74
8   Y   85
6   Y   69
4   Y   76
8   N   82
6   N   74
4   N   66
8   Y   87
6   Y   69
4   Y   78
8   N   70
6   N   71
4   N   74
8   Y   74
6   Y   82
4   Y   76
8   N   62
6   N   73
4   N   68
8   Y   83
6   Y   79
4   Y   69
8   N   72
6   N   67
4   N   66
8   Y   86
6   Y   81
4   Y   74