Abstract The hypothesized equivalency between the four dimensions of the Michigan Four-Factor Theory Questionnaire (F-FTQ) and four dimensions from the Ohio State Leader Behavior Description Questionnaire (LBDQ) was empirically investigated. Data from 74 chapters of a nationwide professional business fraternity were utilized. It was found that there was convergent validity for the dimensions but that they generally did not meet requirements for discriminant validity. The LBDQ dimensions had more shared variance, and less general and unique variance than the F-FTQ. Generally, the LBDQ was found to predict satisfaction criteria better than the F-FTQ. A hierarchical factor analysis of the leadership dimensions and criteria identified two leadership factors in addition to a motivation factor and three general factors. The LBDQ had “cleaner” loadings on these leadership factors than did the F-FTQ. On balance, it was concluded that the hypothesized F-FTQ—LBDQ equivalency did not appear to hold at the empirical level.