Variability analysis for effectiveness and improvement in classrooms and schools in upper secondary education in Slovenia: assessment of/for learning analytic toolZupanc, Darko (Avtor) Urank, Matjaž (Avtor) Bren, Matevž (Avtor) gathering datadata analysis toolconnecting formative and summative assessmentsecondary level of formative assessmentclassroom effectiveness20072012-06-04 12:02:16Neznano29943UDK: 371.26COBISS_ID: 6316563NUK URN: URN:SI:UM:DK:PCYG1M88sl