For instance, in a correlational study design Zimmer and Toma (2000) analyse the peer effects in private and public schools across five countries with an analysis indicating that “peer effects are a significant determinant of educational achievement; the effects of peers appear to be greater for low-ability students than for highability students” (p. 75). Determining whether the STEM activity assisted in managing the single-gender class from a private school would require comparisons with schools from other contexts. Nevertheless, the current study found that the designing, constructing and testing of a medical mission kit facilitated student engagement and, as such, may have contributed to effective classroom management.