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Clarke, Ben; Cil, Gulcan; Smolkowski, Keith; Sutherland, Marah; Turtura, Jessica; Doabler, Christian T.; Fien, Hank; Baker, Scott K. – School Psychology Review, 2020
This study examined the cost-effectiveness of a 50-lesson mathematics intervention program focused on whole number concepts for at-risk kindergarten students, ROOTS. The study utilized a randomized block design with 1,251 at-risk students within 138 classrooms randomly assigned to one of two active treatment conditions (small groups of either two…
Descriptors: Cost Effectiveness, Response to Intervention, Numeracy, Number Concepts
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Fien, Hank; Baker, Scott K.; Smolkowski, Keith; Smith, Jean L. Mercier; Kame'enui, Edward J.; Beck, Carrie Thomas – School Psychology Review, 2008
This study examined the validity of Nonsense Word Fluency as an index of beginning reading proficiency for students in kindergarten through second grade. Validity evidence for Nonsense Word Fluency is addressed in the context of research-based instructional practices implemented on a large scale. Technical adequacy data are presented for all…
Descriptors: Reading Difficulties, Early Reading, Beginning Reading, School Psychologists