It is argued that the concept of general expectancy is a central common cor
e of personality dispositions related to achievement areas. This hypothesis
of common core was investigated with factor analysis and cluster analysis.
166 advanced teacher students participated, and were scored on the followi
ng relevant personality dispositions: motive to seek success, motive to avo
id failure, global and academic self-esteem, self-efficacy, attributional s
tyle, depression, and defensiveness. The hypothesis was supported in that f
actor analysis gave a general bipolar expectancy factor, and cluster analys
is resulted in two clusters, one corresponding to positive expectancy and t
he other to negative expectancy.