آزمون نرمال بودن پراکندگی داده ها Kolmogorov-Smirnov Test | Shapiro-Wilk normality test
https://www.spss-tutorials.com/spss-kolmogorov-smirnov-test-for-normality/
https://www.spss-tutorials.com/spss-shapiro-wilk-test-for-normality/
https://www.spss-tutorials.com/spss-shapiro-wilk-test-for-normality/
Criteria for Selection of statistical tests
Kolmogorov-Smirnov test | Shapiro–Wilk test |
There's 2 ways to run the test in SPSS:
- NPAR TESTS as found under is our method of choice because it creates nicely detailed output.
- EXAMINE VARIABLES from
is an alternative. This command runs both the Kolmogorov-Smirnov test and the Shapiro-Wilk normality test.
Note that EXAMINE VARIABLES uses listwise exclusion of missing values by default. So if I test 5 variables, my 5 tests only use cases which don't have any missings on any of these 5 variables. This is usually not what you want but we'll show how to avoid this.