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Marfo, Kofi; Dinero, Thomas E. – International Journal of Disability, Development and Education, 1991
This paper argues that efficacy of early intervention must be assessed in relation to both program and extra-program variables. A framework outlining five classes of independent variables and two classes of outcomes to be considered in efficacy research is presented, and regression and path analytic techniques are suggested as tools for addressing…
Descriptors: Disabilities, Early Childhood Education, Early Intervention, Evaluation Methods