Thank you for your reply.
The experiment design consists of three phases; (1) pre-test (2) learning, (3) post-test. As for the groups, it consists of only two levels; (1) control, and (2) experimental. We first used ANCOVA to compare between the groups using the post-test scores, while controlling for the covariates (pret-test scores), and using (gender, major, and degree) as additional independent variables.
Now, we are interested in comparing between the groups using the post-test scores and post-test completion times, while controlling for the covariates (pret-test scores, pre-test completion times, and training time) and using (gender, major, and degree) as additional independent variables. We want to conduct MANCOVA to accommodate for two dependent variables, three covariates, and four independent variables. When conducting MANCOVA on Fit Model window (the same way we do ANCOVA), it generates to separate least square fits ( one for posttest scores, and one for posttest completion time).