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Shapiro, 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
Braund, Robert A.; And Others – 1968
The required annual report on compensatory programs funded by the Elementary and Secondary Education Act, Title I, describes California's efforts in the first full year of operation. In general, the programs sought to raise reading and verbal performance levels, improve performance as measured by achievement tests, and also improve students'…
Descriptors: Achievement Gains, Annual Reports, Compensatory Education, Disadvantaged Youth