Exploring Inter-Variable Relationships
Banking institutions can employ the Distance Correlation procedure available in IBM® SPSS® Statistics to assess the dependencies among the selected variables.
Go to
.In the main dialog, select the following four variables for analysis:
- Age in years
- Years with current employer
- Household income (in thousands)
- Debt-to-income ratio (×100)

Criteria
Within the Criteria subdialog, the following analytical options are specified:
- Normalization Method: Min-Max Scaling
- This normalization technic rescales each variable to the [0, 1] interval by subtracting the minimum value and dividing by the range. This approach can ensure that all variables contribute proportionally to the distance calculations, regardless of their original scales or units.
- Confidence Interval Percentage: 95% (Default)
- Select a 95% confidence level for the estimation of confidence intervals around the distance correlation coefficients. This setting allows for interval-based inference, indicating the range within which the true population distance correlation is expected to lie with 95% confidence.
In the Print subdialog, select the following options.
- Print Details
- Shows all configuration settings in the output, including variables selected, normalization method, and test parameters.
- Distance Correlation Coefficients
- Displays pairwise distance correlation values, indicating the strength of dependence (linear or nonlinear) between variables.
- Distance Covariance Estimates
- Reports the pairwise distance covariance values, which quantify the magnitude of joint variability.
- Distance Metrics
- Details the computed pairwise distances for each variable, useful for diagnostics and interpretation.
- Significance Estimates
- Provides p-values associated with each distance correlation coefficient, helping assess statistical significance.
Plot
In the Plot subdialog, set a bivariate scatter plot with the following axes.
- X-axis: Age in years
- Y-axis: Debt-to-income ratio (×100)