Eysenck (2) has argued that introverts develop conditioned responses more rapidly and to greater strength than do extraverts, and has deduced that their secondary drives and degree of socialization will accordingly be greater. A consonant expectation is that introverts would be high in achievement motivation (4), which some work of McClelland, et a1. (7) seems to support. These authors have reported personality traits descriptive of introversion as being associated with high achievement motivation when the latter is measured by TAT fantasy reports. The present note reports further data, employing an objective rather than projective measure of achievement motivation. One of the most widely used measures of introversion has been the Maudsley Personality Inventory (3, 6), which has recently been revised and improved, and renamed the Eysenck Personality Inventory (EPI; 5). The E scale of the EPI was used as the present measure of introversion (a low score indicates introversion) and the n Achievement (n Ach) scale of the Edwards Personal Preference Schedule (EPPS; 1) as a measure of achievement motivation. This is an objective, direct self-report measure, with forced-choice items each consisting of rwo statements matched with respect to social desirability scale value. Both scales were administered to 66 male trade apprentices at a large British motor works training school. The Pearson correlation between the two scales was -0.21 (P < .05; 1-tailed test). Though significant in the predicted direction, the correlation is disappointingly low. One reason for this outcome may lie in the special characteristics of the sample, which is quite different from the original EPPS normative samples and most research samples in being neither North American nor from a college or university student population. Furthermore, it is younger than most previously reported samples and is very homogeneous with respect to age (M = 17.60 yr., SD = 0.87). It might be expected that on a North American university sample the relationship would be more marked, and indeed, employing 70 such Ss in an unpublished factor-analytic study, Farley obtained a factor loading of -0.34 for n Ach (EPPS) on a second-order factor of extraversion. Replication on a more heterogeneous sample with other measures of achievement-motivation might be fruitful.