Cooley, William W. <br/><br/>
The difficulty of the educational task : Implications for comparing student achievement in states, school districts and schools 

 - 27-31 
 - 11, No. 3, 1993 
<br/><br/>Diciembre 1993 
 = ERS SPECTRUM 
<br/><br/><label>Encabezamiento--Término de Indización: </label>EDUCACION COMPARADA MARCADORES POLITICA EDUCATIVA REFORMA FINANCIERA RENDIMIENTO ACADEMICO