Tag: normality test SPSS
Natural Logarithm Data Transformation to Improve Data Normality, Is It True?
In parametric statistical analysis, several assumptions must be met, one of which is the assumption that data should be normally distributed. However, in practice, the data obtained from research does not always follow a normal distribution based on statistical tests. Therefore, some researchers attempt to adjust the distribution of data to make it more closely resemble a normal distribution. One common method is data transformation. Among various types of data transformations, the natural logarithm transformation is one of the most commonly used.
Can Outliers Make Your Data Look Non-Normal? Here’s a Simulation and How to Handle It
In many parametric statistical tests, it’s assumed that the data must follow a normal distribution. That’s why, when we’ve gathered research data and are planning to use parametric statistical analysis, checking for normality is crucial. We need to make sure that the data follows a normal distribution before proceeding with further analysis.