Shapiro Wilk Test Spss

Normality Testing with the Shapiro-Wilk Test in SPSS

What is the Shapiro-Wilk Test?

The Shapiro-Wilk test is a statistical test used to assess whether a sample of data follows a normal distribution. It is a nonparametric test, which means that it does not make any assumptions about the underlying distribution of the data.

How to Use the Shapiro-Wilk Test in SPSS

To use the Shapiro-Wilk test in SPSS, follow these steps:

1. Open your SPSS data file.
2. Select "Analyze" > "Nonparametric Tests" > "1-Sample Shapiro-Wilk".
3. Select the variable you want to test for normality.
4. Click "OK".

SPSS will output a table with the results of the Shapiro-Wilk test. The most important statistic to look at is the p-value. A p-value less than 0.05 indicates that the data is not normally distributed.