There is a common perception that private schools achieve higher than public schools. However, recent studies have found that the performance disparity between school types can be accounted for by differences in the population of students attending the different types of schools. Using raw data from the 2015 Secondary Entrance Assessment exam, this paper estimates the effect on academic achievement in Trinidad as a result of attending privately managed public primary schools (assisted schools) relative to traditional public schools (government schools). Controlling for demographic, personnel and administrative differences, the analysis finds no meaningful difference in academic achievement between students in assisted schools versus students in government schools.