1. Assume that a researcher is interested in the detrimental effects of sleep deprivation on cognitive ability. The researcher randomly selects 9 volunteers to participate and gives them an I.Q. test before and after depriving them of sleep for 24 hours by waking them once every hour during their normal sleep time and preventing them from sleeping during the day. Data for the study is presented in the table below. Conduct the proper statistical procedure including all necessary steps to evaluate the hypothesis. Assume α = .01

1. Write the research question.
2. Write the null hypothesis.
3. Using symbols, write H ₀ : , H ₁ :
4. In SPSS, create the variables, enter the given data, then do the appropriate analysis to test the null hypothesis at α = .01.
5. Copy and paste here the SPSS output tables.
6. Write the results.

2. Assume that a researcher is interested in the criterion-related validity between a smart phone app to screen signs of concussion and a comprehensive physician’s exam of concussion. Twelve participants are randomly selected to go through both the smart phone app screening and the physician’s exam. The results are reported in the following table. Conduct the appropriate statistical procedure to test the criterion-related validity of the smart phone app screening for concussion. Due to the exploratory nature of this study, use two-tailed test and assume α = .10. (10 points)

1. Write the research question.
2. Write the null hypothesis.
3. Using symbols, write H ₀ : , H ₁ :
4. In SPSS, create the variables, enter the given data, then do the appropriate analysis to test the null hypothesis at α = .01.
5. Copy and paste here the SPSS output tables.
6. Write the results.

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