The purpose of this study was to assess the impact of the Pathways to STEM Initiative (PSI) on students and science teachers and to describe the level of PSI implementation. One group of middle schools participated in PSI, which included project-based science, technology, engineering, and math (STEM) coursework; extra-curricular STEM opportunities…

The concept of "implementation fidelity" is broadly used to capture the extent to which an intervention is executed as intended by the designers of the intervention (Century, Rudnick, & Freeman, 2010; Huntley, 2005, McNaught, Tarr, & Sears, 2010, Munter, 2010). Though implementation fidelity instruments are often used to assess…