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Podhajski, Blanche; Mather, Nancy; Nathan, Jane; Sammons, Janice – Journal of Learning Disabilities, 2009
This article reviews the literature and presents data from a study that examined the effects of professional development in scientifically based reading instruction on teacher knowledge and student reading outcomes. The experimental group consisted of four first- and second-grade teachers and their students (n = 33). Three control teachers and…
Descriptors: Experimental Groups, Teacher Characteristics, Oral Reading, Phonemics
White, Owen R. – 1978
Traditionally, the use of control groups, regression discontinuity/projection, or norm referenced models has been advocated for educational program evaluation. The small numbers of and the heterogeneous characteristics of severely and profoundly handicapped make these evaluation methods inappropriate for this population subgroup. Furthermore, no…
Descriptors: Case Studies, Control Groups, Elementary Secondary Education, Evaluation Methods