T. W. Adorno, Else Frenkel-Brunswik, Daniel J. Levinson, and R. Nevitt Sanford in collaboration with Betty Aron, Maria HertzLevinson, and William Morrow, The Authoritarian Personality, John Wiley & Sons, 1950



Each item is identified by a key word or phrase, and the letters N, M, and P refer to the subscales Negroes, Minorities, and Patriotism respectively. It will be recalled that the Discriminatory Power (D. P.) equals the mean for the high quartile minus the mean for the low quartile....

In general the D. P.'s in Table 7 [right] are very satisfactory (5), averaging 2.97. For the 34 items, 5 D. P.'s are over 4.0, 13 are between 3.0 and 3.9, and 10 are between 2.0 and 2.9; only 3 are between 1.0 and 1.9, and 3 less than 1.0. Furthermore, all 6 items with D. P.'s of less than 2.0 have group means of less than 3.0, so the D. P. is more significant than it appears.

The three least discriminating items are 19, 25, and 28, all in subscale N. They are also the only three items with group means of less than 2.0. Their low means indicate almost unanimous disagreement by all subjects. This is to be expected, since the items are particularly violent and repressive: Negroes should be driven out of town, lynched, kept ignorant and uneducated. But these data show the advantage of permitting three degrees of agreement and of disagreement, and they also reveal a subtle receptiveness in the high-scoring subjects to openly antidemocratic programs.



(5) The D. P.'s would be even higher if the "range of talent" in this group included more extreme ethnocentrists. This is shown by results on subsequently tested groups.