stats.spearman_brown_inv
stats.spearman_brown_inv(r, r_new)Predicting required test length for a given reliability.
Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| r | float | The current reliability coefficient. | required |
| r_new | float | The desired reliability coefficient. | required |
Returns
| Name | Type | Description |
|---|---|---|
| n | float | The required test length relative to the current one. |