Partial correlation is almost similar to Pearson product-moment correlation only that it accounts for the influence of another variable, which is thought to be correlated with the two variables of...
Category: Data collection and analysis
In this post, I discuss what correlation is, the two most common types of correlation statistics used (Pearson and Spearman), and how to conduct correlation analysis in SPSS. What is correlation...
SPSS Tutorial #10: How to Check for Normality of Data in SPSS
The normality assumption states that the data is normally distributed. This post touches on the importance of normality of data and illustrates how to check for normality of data in SPSS. Why...
SPSS Tutorial #9: How to Check for and Deal with Outliers in SPSS
Outliers are data values that are different from most of the data values in a dataset. They can either be extremely high or extremely low compared to the rest of the data values. This post...
In addition to using descriptive statistics for preliminary analysis, one can also use graphs. Unlike the statistics, graphs offer a visual way of exploring the data further. This post illustrates...
SPSS Tutorial #7: Preliminary Analysis using Descriptive Statistics in SPSS
After checking for and correcting errors in your dataset, the next important step before running your analysis is to conduct preliminary analysis to explore the nature of your data. One can conduct...