1. Select two theoretically related variables, such as X and Y, and input the data into SPSS.

2. On the whole, the trends of X and Y are the same.

3. In order to solve the similarity, SPSS is used for analysis, from analysis-correlation-bivariate.

4. Open the binary correlation dialog box and import the selected x and y into the variable window.

5. Then choose Pearson correlation coefficient as the correlation coefficient, or you can choose the other two.

6. Click OK to display the correlation analysis results in the result output window.