Normality and independent samples t-test
Assess normality when comparing two independent groups on a continuous outcome
The steps for checking the assumption of normality for independent samples t-test in SPSS
2. Drag the mouse pointer over the Descriptive Statistics drop-down menu.
3. Select Descriptives.
4. Click on the continuous outcome variable to highlight it.
5. Click on the arrow to move the outcome variable into the Variable(s): box.
6. Click the Options tab.
7. Deselect Minimum and Maximum boxes under the Dispersion section.
8. Select the Kurtosis and Skewness boxes under the Distribution section.
9. Click Continue.
10. Select the Save standardized values as variables box.
11. Click OK.
The steps for interpreting the SPSS output for normality and independent samples t-test
Was the assumption of normality met for independent samples t-test?
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