with less than a high school education who might have the greatest need to increase their human capital investment were … less likely to participate in adult education than workers with high school or more education. The study shows that male … earnings gains than their counterparts who did not go back to school, regardless of age and initial level of education. On the …

-secondary certificate. Workers with less than a high school education who might have the greatest need to increase their human capital … investment were less likely to participate in adult education than workers with high school or more education. The study shows … education. On the other hand, men who obtained a certificate and switched jobs generally realized no significant return to their …