Sex differences in personality and expectancy

It has been shown that women have a lower expectancy than men before examinations, without there being any differences in past performance levels or in work spent in exam preparations. It was proposed that these sex differences in expectancy could be understood as an expression of differences in instrumental/expressive personality dispositions. In a group of undergraduate psychology students tested a short time before examination, scores on a composite index called “Strong” were found to account for a significant but small amount of variance in expectancy estimates. The relationship between expectancy and Strong was also found to depend on the level of another composite index called “Warm.” A fairly high correlation between expectancy and Strong was thus found for Ss describing themselves as warm. For Ss describing themselves as not very warm, no relationship between expectancy and Strong was found. When differences in personality traits were controlled, however, women were still found to have a lower expectancy than men. Expectancy was found to be a more accurate predictor of actual grades for Ss with high scores on instrumental traits than for Ss with low scores.