Abstract
Most early intervention program evaluation plans today include some type of pre/posttest design using one or more norm-referenced instruments. A common objective is to document the beneficial impact of a program on the performance of participating children. This article reviews the ways in which norm-referenced DA and DQ evaluation data are currently reported and notes disadvantages associated with each. The concept of intervention DQ, in contrast with Pretest DQ, is proposed as a valid and meaningful way to report this type of evaluation data to broad audiences.

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