In studying the effectiveness of different instructional programs, a criterion measure can favor one of the programs because there is greater overlap between the content covered on the test and in that program. This overlap can be measured using teacher estimates or teacher estimates combined with curriculum analysis. (Author/BW)

The effectiveness of the Elementary and Secondary Education Act Title I reading and mathematics laboratories were evaluated to assess the improvement of underachieving elementary school students' academic skills. Laboratory students were selected on the basis of academic (rather than socioeconomic) criteria in grades 2 through 5; the control…