“…Methodological challenges aside (Grissom et al, 2019), a growing research base has shown that the design of these programs matters (Cosner, 2019; Crow & Whiteman, 2016; Darling-Hammond et al, 2007; Davis & Darling-Hammond, 2012; Young, 2015). As a framework for what makes principal preparation exemplary, the Darling-Hammond et al (2007) study is frequently cited (Cosner, 2019). Examining eight different university-based programs, they found that rigorous recruitment and selection, research-based content, curricular coherence, field-based internships, problem-based learning strategies, cohort structures, mentoring or coaching, and collaboration between universities and school districts were important considerations.…”