Other examples of commonly cited studies that examined the efficacy of Montessori
programs include studies by Glenn (1996) and Dawson (1987). Glenn (1996) conducted a 10 year longitudinal follow-up study of Montessori students on measures of academic achievement, as well as such personality characteristics as self-control, self-direction, spontaneity, and creativity. Results indicated that students who attended Montessori programs were “as successful as the general public” and that years in a Montessori program were not related to personality characteristics.