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I am trying to put together a research determining the relationship between age and exercise time...

I am trying to put together a research determining the relationship between age and exercise time and if there is a significant difference in gender and exercise times. I would like to determine the dependent variable normality using SPSS. Gender is always independent, but when I'm trying to assess the normality for the age and exercise times. Exercise will always be dependent, but will in this case is age also dependent or independent? How would I determine this on SPSS?

Math   Statistics-And-Probability   
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Answer #1

In your research study the Exercise is dependent variable and the age is independent variable. To asses the relationship between age and exercise time, first you need to check the normality of dependent variable (Exercise).

To check the normality of Exercise in SPSS, You click on Analysis menu. Then click on Descriptive statistics followed by Explore. In Explore dialog box, Enter the Exercise variable in the Dependent list, then click on Plots. In plot dialog box right click on Normality plots with tests, then click on continue and press ok.

The SPSS output consists of two tests of Normality, Namely, Kolmogorov- Smirnov and Shapiro- Wilk. The Shapiro- Wilk test used when sample size of dependent variable (Exercise) lies between 5 to 2000. However the Kolmogorov- Smirnov test used when sample size of dependent variable (Exercise) greater than or equal to 2000.

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