ERIC Number: ED408343
Record Type: Non-Journal
Publication Date: 1997-Mar-25
Reference Count: N/A
Selection of Higher Successfulness and Lower Successfulness Schools.
Schafer, William D.
As part of a study of school effectiveness, a procedure was developed to select schools for study based on extreme high or extreme low degrees of successfulness in reading. Data for all 775 public elementary schools in Maryland that were active in 1995 were used. Five triads of schools were selected, each triad consisting of two schools that were high and one school that was low in successfulness. The triads were: (1) high income suburban; (2) moderate income suburban; (3) low income urban; (4) low income suburban; and (5) low income rural. Achievement in schools was measured by the Maryland School Performance Assessment Program. As a first step in selection, regression models were developed to predict reading school means. Then the regression models were used to generate selection indices. Schools were then grouped, first into income levels, and then into levels of urbanicity. The 5 groups from which to select a triad each were then found to be 39 low income urban, 55 low income suburban, 11 low income rural, 28 moderate income suburban, and 78 high income suburban. In each group, schools were ordered on the basis of the selection index. The two highest-scoring and lowest-scoring schools were invited. If a school did not agree to participate, the next-higher or next-lower scoring school was invited until the triad was selected. One appendix, which contains seven tables, discusses the school-level successfulness indices across the state achievement testing program scores, and the other compares test score residuals with the school performance index and its residuals. (Contains six references.) (SLD)
Descriptors: Educational Research, Elementary Education, Elementary Schools, High Achievement, Low Achievement, Low Income Groups, Reading Achievement, Regression (Statistics), Research Methodology, Sample Size, Sampling, School Effectiveness, Selection, Socioeconomic Status, Suburban Schools, Urban Schools
Publication Type: Reports - Evaluative; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A
Identifiers - Location: Maryland