Comparing Estimates of Teacher Value-Added Based on Criterion- and Norm-Referenced Tests. Summary. REL 2014-004

Autor/inn/en	Stuit, David; Austin, Megan J.; Berends, Mark; Gerdeman, R. Dean
Institution	National Center for Education Evaluation and Regional Assistance (ED); Regional Educational Laboratory Midwest (ED)
Titel	Comparing Estimates of Teacher Value-Added Based on Criterion- and Norm-Referenced Tests. Summary. REL 2014-004
Quelle	(2014), (3 Seiten) PDF als Volltext (1); PDF als Volltext kostenfreie Datei (2) Verfügbarkeit
Zusatzinformation	Weitere Informationen
Sprache	englisch
Dokumenttyp	gedruckt; online; Monographie
Schlagwörter	Criterion Referenced Tests; Norm Referenced Tests; Teacher Effectiveness; Reading Achievement; Mathematics Achievement; Computation; Correlation; Statistical Analysis; Comparative Analysis; Classification; Grade 4; Grade 5; Elementary School Students; Elementary School Teachers; Public Schools; Indiana; Indiana Statewide Testing for Educational Progress Plus + Suchen Sie Ihr Suchwort? Effectiveness of teaching; Instructional effectiveness; Lehrerleistung; Unterrichtserfolg; Leseleistung; Mathmatics sikills; Mathmatics achievement; Mathematical ability; Mathematische Kompetenz; Korrelation; Statistische Analyse; Classification system; Klassifikation; Klassifikationssystem; School year 04; 4. Schuljahr; Schuljahr 04; School year 05; 5. Schuljahr; Schuljahr 05; Elementary school; Teacher; Teachers; Grundschule; Volksschule; Lehrer; Lehrerin; Lehrende; Public school; Öffentliche Schule
Abstract	Recent changes to state laws on accountability have prompted school districts to design teacher performance evaluation systems that incorporate student achievement (student growth) as a major component. As a consequence, some states and districts are considering teacher value- added models as part of teacher performance evaluations. Value-added models use statistical techniques to estimate teachers' (or schools') contributions to growth in student achievement over time. Designers of new performance evaluation systems need to understand the factors that can affect the validity and reliability of value-added results or other measures based on student assessment data used to evaluate teacher performance. This study provides new information on the degree to which value-added estimates of teachers differ by the assessment used to measure their students' achievement growth. The study used three analytic strategies to quantify the similarities and differences in estimates of teacher value-added from the ISTEP+ and MAP: correlations of value-added estimates based on the two assessments, comparisons of the quintile rankings of value-added estimates on the two assessments, and comparisons of the classifications of value-added estimates on the two assessments according to whether their 95 percent confidence intervals were above, below, or overlapping the sample average. Overall, the findings indicate variability between the estimates of teacher value-added from two different tests administered to the same students in the same years. Specific sources of the variability across assessments could not be isolated because of limitations in the data and research design. However, the research literature points to measurement error as an important contributor. The findings indicate that incorporating confidence intervals for value-added estimates reduces the likelihood that teachers' performance will be misclassified based on measurement error. [For the full report, see ED544674.] (ERIC).
Anmerkungen	Regional Educational Laboratory Midwest. Available from: American Institutes for Research. 1120 East Diehl Road Suite 200, Naperville, IL 60563. Tel: 866-730-6735; Tel: 630-649-6500; Fax: 630-649-6700; e-mail: relmidwest@air.org; Web site: http://www.relmidwest.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10