Wie teste ich Daten auf Normalverteilung (grafisch, analytisch)? - Daten analysieren in SPSS (17)

// How do I test data for normal distribution (graphically, analytically)? // First, there is a graphical method for checking for normality by examining a histogram with a stylized normal distribution curve. Skewness or excessive kurtosis in the distribution already indicates non-normality. This can also be done analytically by outputting and evaluating skewness and kurtosis. Ideally, both values ​​should be 0. Values ​​only slightly different from 0 can still be considered sufficient to confirm the assumption of normality or normal distribution of the data. A true analytical test for normality of the data is performed using the Kolmogorov-Smirnov test and the Shapiro-Wilk test. In both tests, the null hypothesis is that the data follow a normal distribution. Therefore, the goal is to be able to confirm that the null hypothesis cannot be rejected if normality of the data is to be demonstrated. A true analytical test for normality of the data is performed using the Kolmogorov-Smirnov test and the Shapiro-Wilk test. The Shapiro-Wilk test is preferred, however, because it has higher statistical power, especially with smaller samples. Both the Shapiro-Wilk and Kolmogorov-Smirnov tests sometimes indicate abnormality in large samples and are therefore best used, if at all, with small samples (under 100). Original article by Shapiro and Wilk: S. S. Shapiro and M. B. Wilk Biometrika, Vol. 52, No. 3/4 (Dec., 1965), pp. 591-611 (http://www.jstor.org/stable/2333709?s...) For further reading, please visit my website: ======================================== 💡 Testing for normal distribution in SPSS: https://www.bjoernwalther.com/test_no... More tutorials and supplementary materials: ============================ 🌐My website: https://bjoernwalther.com/ For questions and suggestions regarding the detection of normality or normal distribution of data in SPSS, please use the comment section. Let me know if you found the video helpful by giving it a thumbs up or down. #statistikampc ⭐Become a channel member⭐: =======================    / @statistikampc_bjoernwalther   Timestamp ⏰ ============ 0:00 Introduction 0:25 Concrete example - "Frequencies" button 1:11 Interpreting skewness and kurtosis 1:55 Graphical evaluation with histogram 3:10 Analytical tests (Kolmogorov-Smirnov, Shapiro-Wilk test) 7:36 Graphical evaluation with Q-Q diagram/Q-Q plot Support the channel? 🙌🏼 =================== PayPal donation: https://www.paypal.com/paypalme/Bjoer... Amazon affiliate link: https://amzn.to/2iBFeG9 Thank you for your support! ♥