The author investigated the interrelationships of teachers' scores on various tests of personality and rating scales and correlated these with teaching efficiency as measured by 13 teacher tests and by the criterion of pupil gains. The subjects were teachers in 72 rural schools. The Washburne Social Adjustment Inventory showed significant correlation with the criterion of teacher ratings, with a composite of two or more personality rating scales, with the criterion of professional teacher tests, but not with measures of pupil changes. Scores on the Bernreuter Personality Inventory and the Rudisill Scale for the Measurement of the Personality of Elementary School Teachers also were unrelated to pupil change. Some relationship was found between the criterion of pupil change and the Almy-Sorenson Rating Scale for Teachers, the Michigan Teacher Rating Scale, the Torgerson Diagnostic Teacher Rating Scale, and two unstandardized scales. (PsycINFO Database Record (c) 2012 APA, all rights reserved)