A validation study of a brief screening instrument for mood disorders among bipolar offspring.
Psychometrically, the 14-item 7U7D and 73-item GBI performed similarly.
The 7D, but not the 7U, showed some potential as screener for (new) mood disorders.
The 7U7D did not distinguish between BD versus unipolar depression.
Based on this study, the utility of the 7U7D as screener is considered limited.