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Direct linkShapiro, Anna; Weiland, Christina – Educational Evaluation and Policy Analysis, 2019
There are unique challenges to estimating causal effects of preschool for students with special needs that have not received attention in the literature. We revisit the Head Start Impact Study (HSIS) to illustrate that when and how special needs is defined has implications for the internal validity of and interpretation of special needs subgroup…
Descriptors: Definitions, Special Education, Preschools, Preschool Children
Morrison, Mary O.; Bratton, Sue C. – Psychology in the Schools, 2010
Head Start teachers and their aides (n = 24) were assigned to either the experimental or active control treatment in this preliminary investigation on the effects of Child Teacher Relationship Training (CTRT) on 52 disadvantaged preschool children identified with behavioral problems. CTRT is based on the principles and procedures of Child Parent…
Descriptors: Delivery Systems, Behavior Problems, Investigations, Early Intervention
