Procedure: Point Biserial Correlation
UNISTAT statistical package extends Excel with Point Biserial Correlation support.
Sample output
Here we provide annotated example report output from the UNISTAT Excel add-in for data analysis.
Point Biserial Correlation
| Cases | Mean | Standard Deviation | Standard Error | |
|---|---|---|---|---|
| Basal | 13 | 5.6515 | 0.4650 | 0.1290 |
| Energy | 13 | 8.0662 | 1.2381 | 0.3434 |
| Total | 26 | 6.8588 | 0.9352 | 0.1834 |
| Point Biserial Correlation | -0.7866 |
|---|---|
| 95% Confidence Interval | -0.8998 <>-0.5743 |
| t-Statistic | -6.2419 |
| Degrees of Freedom | 24.0000 |
| 1-Tail Probability | 0.0000 |