Several such studies have shown the PCS to be invariant, with most accuracy in the three oblique factor structure, across genders and both clinical and non-clinical groups.
2.
Late 60's to early 70's, " Psychiatric Outpatient Mood Scale " was changed to " Profile of Mood States . " They continue to collaborate and revised more data on outpatients which would result in the making of the 65 five-point adjective rating scale that would coincide with the six oblique factor structure : tension-anxiety, depression-dejection, anger-hostility, fatigue, vigor, and confusion-bewilderment.