TWO NINE-ITEM SELF-RATING QUESTIONNAIRE SCALES WERE DEVELOPED TO MEASURE, ON THE ONE HAND: FEATURES TYPICALLY ASSOCIATED WITH A HISTORY OF MANIA-LIKE PHENOMENA, AND, ON THE OTHER HAND, FEATURES TYPICALLY ASSOCIATED WITH A HISTORY OF CLINICAL DEPRESSION THESE: SCALES WERE ADDED TO PRODUCE AN 18-ITEM SCALE WHICH, IT WAS HYPOTHESIZED, MIGHT MEASURE DEGREE OF HISTORY OF .MANIC-DEPRESSIVE-LIKE PHENOMENA. RESULTS TENDED TO SUPPORT THIS VIEW: (1) COMPARED WITH STUDENTS, MANIC-DEPRESSIVES OBTAINED SIGNIFICANTLY HIGHER SCORES ON EACH OF THESE THREE SCALES; (2) ALL SCALES, BUT ESPECIALLY THE MANIC EXPERIENCE SCALE, CORRELATED SIGNIFICANTLY POSITIVELY WITH THE MMPI HYPERMANIA SCALE; AND (3) FOR A SUBSET OF THE MANIC-DEPRESSIVES, A PERSON'S SCORES ON TWO OF THE THREE NEW SCALES WERE SIGNIFICANTLY CORRELATED WITH THE NUMBER OF DIFFERENT MANIC-DEPRESSION-RELEVANT MEDICATIONS THAT THAT PERSON WAS TAKING.