Article (Scientific journals)
Value-Added Scores Show Limited Stability over Time in Primary School
Emslander, Valentin; Levy, Jessica; Scherer, Ronny et al.
2022In PLoS ONE, 17 (12), p. 0279255
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Keywords :
Value-added modeling; school effectiveness; longitudinal data; primary school
Abstract :
[en] Value-added (VA) models are used for accountability purposes and quantify the value a teacher or a school adds to their students’ achievement. If VA scores lack stability over time and vary across outcome domains (e.g., mathematics and language learning), their use for high-stakes decision making is in question and could have detrimental real-life implications: teachers could lose their jobs, or a school might receive less funding. However, school-level stability over time and variation across domains have rarely been studied together. In the present study, we examined the stability of VA scores over time for mathematics and lan- guage learning, drawing on representative, large-scale, and longitudinal data from two cohorts of standardized achievement tests in Luxembourg (N = 7,016 students in 151 schools). We found that only 34–38% of the schools showed stable VA scores over time with moderate rank correlations of VA scores from 2017 to 2019 of r = .34 for mathematics and r = .37 for language learning. Although they showed insufficient stability over time for high-stakes decision making, school VA scores could be employed to identify teaching or school practices that are genuinely effective—especially in heterogeneous student populations.
Research center :
- Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Luxembourg Centre for Educational Testing (LUCET)
Disciplines :
Education & instruction
Author, co-author :
Emslander, Valentin  ;  University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > LUCET
Levy, Jessica;  University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Luxembourg Centre for Educational Testing (LUCET)
Scherer, Ronny;  University of Oslo, Norway > Faculty of Educational Sciences > Centre for Educational Measurement at the University of Oslo (CEMO)
Fischbach, Antoine  ;  University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Education and Social Work (DESW)
External co-authors :
yes
Language :
English
Title :
Value-Added Scores Show Limited Stability over Time in Primary School
Publication date :
28 December 2022
Journal title :
PLoS ONE
ISSN :
1932-6203
Publisher :
Public Library of Science, San Franscisco, United States - California
Volume :
17
Issue :
12
Pages :
e0279255
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Educational Sciences
Name of the research project :
Systematic Identification of High "Value-Added" in Educational Contexts (SIVA)
Funders :
Observatoire National de la Qualité Scolaire
Available on ORBilu :
since 15 September 2022

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