Test of Normality of Data in SPSS

In this video, I demonstrated how you can test whether your data is normally distributed or not using:
1. Shapiro-Wilk Test
2. Kolmogorov Smirnov Test
3. Histogram
4. Q-Q Plot
5. Skewness, and
6. Kurtosis
Your data is expected to be at least approximately normally distributed for your data to produce valid results for parametric tests, such as:
1. Pearson's Correlation
2. One Sample T-Test
3. Paired Sample T-Test
4. Analysis of Variance, and
5. Regression Analysis, among others.

So, to achieve these tests, the numerical and the graphical methods and approach were demonstrated and thereafter interpreted in great details for easy comprehension. The Skewness and Kurtosis as well as the Kolmogorov Smirnov test and the Shapiro-Wilk test constituted the numerical methods that were applied to test whether the data is approximately normally distributed or not. While on the other hand, the Histogram and the Q-Q plot were also engaged as the graphical methods. See the video to the end to learn about the "How".

From the two approaches, you can make a choice of the knowledge to utilize. All the individual methods spoken about are reliable, but you have the prerogative to use all simultaneously or use the one that is most suitable to you.

If you have personal questions as regards this lesson, or any of my video tutorials in my YouTube Channel, please reach me directly on my email: [email protected]. I will try and read your queries and respond as quickly as I can.

To see my videos on how to load data into SPSS, please use this links:

Introduction to SPSS for Beginners Part-1:    • Introduction to SPSS Software for Beg...  
Introduction to SPSS for Beginners Part-2:    • Introduction to SPSS Software for Beg...  

The following videos may also be of interest to you:
Analysis of Variance in SPSS (Effect size and Interpretations):    • Analysis of Variance in SPSS (Effect ...  
Paired Sample T-Test in SPSS and Interpretations:    • Paired Sample T Test in SPSS and Inte...  
How to Perform and Interpret One Sample T-Test in SPSS:    • One Sample T-Test in SPSS and Interpr...  
How to Perform Descriptive Statistics in SPSS:    • Descriptive Statistics in SPSS  
How to Perform Pearson’s Correlation Analysis:    • How to Perform Pearson's Correlation ...  
How to Calculate Pearson’s Correlation Coefficient by Hand, Interpret and Report Results in APA style:    • How to Calculate Pearson's Correlatio...  

Other non-analytical videos you might be interested in include:
How to Extract Image from the Background of Picture as Transparent Image using Paint3D:    • Extract Image from Background with Pa...  
Changing the Background of Picture without using Software:    • Changing the Background of Picture Wi...  


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