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Modeling Heterogeneity in Relationships Between Initial Status and Rates of Change: Treating Latent Variable Regression Coefficients as Random Coefficients in a Three-Level Hierarchical Model
Linear and nonlinear growth models for value-added assessment: an application to Spanish primary and secondary schools’ progress in reading comprehension
An Empirical Survey of Frontier Efficiency Measurement Techniques in Education
The 21 references without a DOI — listed, not checked
no DOI — not checkedref1
no DOI — not checkedForma b�sica del crecimiento en los modelos de valor a�adido: V�as para la supresi�n de efecto de regresi�n
no DOI — not checkedref11
no DOI — not checkedref12
no DOI — not checkedref13
no DOI — not checkedEficiencia en educaci�n secundaria e inputs no controlables: sensibilidad de los resultados ante modelos alternativos
no DOI — not checkedDesarrollo y validaci�n de un modelo de calidad universitaria como base para su evaluaci�n
no DOI — not checkedEstudio de la eficiencia de los centros de ense�anza secundaria de la ciudad de Murcia a trav�s del An�lisis Envolvente de Datos
no DOI — not checkedThe economics of schooling: production and efficiency in public schools
no DOI — not checkedEficiencia y eficacia de los institutos p�blicos de bachiller de la provincia de Alicante
no DOI — not checkedAllocative efficiency vs. X-efficiency
no DOI — not checkedref27
no DOI — not checkedOn the basic proposition of X-Efficiency Theory. The American Economic Review
no DOI — not checkedref30
no DOI — not checkedref31
no DOI — not checkedUsos, aplicaciones y problemas de los modelos de valor a�adido en educaci�n
no DOI — not checkedConcepto y evoluci�n de los modelos de valor a�adido en educaci�n
no DOI — not checkedref39
no DOI — not checked�Son realmente menos eficientes los centros LOGSE? (La evaluaci�n DEA de los institutos de ense�anza secundaria)
no DOI — not checkedref46
no DOI — not checkedref50
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