Construct Validity of the Myers-Briggs Type Indicator

The Myers-Briggs Type Indicator (MBTI) is widely recognized as an important measure of normal or non-pathological variations in personality. However, the construct validity of the measure has not been clearly established using factor analytic techniques. The present study investigated the structure and item performance of the instrument using data from 359 college students. Factor analysis was applied to the 95 scored MBTI items. Factor adequacy and invariance coefficients were computed, and the appropriateness of the recommended item weights was examined. The results strongly supported the instrument's construct validity.