This definition appears rarely
See other definitions of TDI
Samples in periodicals archive:
In 1987, an advanced scoring system was developed for the MBTI. From this was developed the Type Differentiation Indicator (TDI) (Saunders, 1989) which is a scoring system for the longer MBTI, Form J, which includes the 290 items written by Myers that had survived her previous item analyses. It yields 20 subscales (five under each of the four dichotomous preference scales), plus seven additional subscales for a new "Comfort-Discomfort" factor (which purportedly corresponds to the missing factor of Neuroticism).