Research was conducted among 82 secondary level student teachers to determine whether teacher candidate effectiveness is related to learners' cognitive attainment levels. The quantitative difference in the number of objectives achieved by over 6,000 learners in 2 units taught by student teachers was examined over 5 semesters. The student teachers were supervised by 5 university supervisors and 57 classroom supervisors from 12 schools. Two rating scales were used by the university supervisors to rate the student teachers: an evaluation profile of instructional skills and a checklist for curriculum context. Student teachers completed two self-evaluation instruments and developed criterion-referenced tests to provide learner achievement data from their pupils. The findings indicated that there were no sizable differences in the percentage of objectives achieved across the two units taught by the student teachers. Tables are provided giving the percent of total objectives achieved by learners, the number of instructional periods used by student teachers for the two units, and the time devoted to teaching each unit. (JD)