Normality (Free Access)

Normality

• Click on:
  • Analyze
  • Descriptive Stats
  • Explore
  • Move the IV to the Dependent list
  • Plots
  • Normality plots with test
  • Ok

Output:

• Kolmogorov-Smirnov Test is used when data for more than 2000 sample is available
• Shapiro-Wilk test is used for data below 2000 samples
• For both cases, if the significant level is below <0.05, it is considered that the data is not normally distributed and nonparametric forms of tests are conducted
• If the significant level is above 0.05, then the data is considered normally distributed and parametric forms of tests are conducted.