Vertical Scaling
Vertical scaling places tests written for different grade levels onto a single continuous score scale so that growth from one grade to the next can be measured in common units. Unlike horizontal equating, which links alternate forms intended to be interchangeable, vertical scaling deliberately links tests of differing difficulty and content to build a developmental continuum spanning, for example, grades 3 through 8. It is the measurement foundation that lets a fourth-grade and a fifth-grade score be subtracted to express how much a student grew.
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Vyanzo
- Kolen, M. J., & Brennan, R. L. (2014). Test Equating, Scaling, and Linking: Methods and Practices (3rd ed.). Springer. ISBN: 9781493903160
- Yen, W. M., & Fitzpatrick, A. R. (2006). Item Response Theory. In R. L. Brennan (Ed.), Educational Measurement (4th ed., pp. 111–153). American Council on Education / Praeger. ISBN: 9780275981259
Jinsi ya kunukuu ukurasa huu
ScholarGate. (2026, June 22). Vertical Scaling of Achievement Tests Across Grades. ScholarGate. https://scholargate.app/sw/education/vertical-scaling
Mbinu ipi?
Weka mbinu hii kando ya jamaa zake wa karibu na uzisome bega kwa bega — maktaba huweka vitabu mezani; uamuzi ni wako.
- Educational Growth Curve ModelingEducation↔ linganisha
- Nadharia ya Itikio la Kipengee (IRT)Saikometriki↔ linganisha
- Student Growth PercentilesEducation↔ linganisha
- Kusawazisha VipimoSaikometriki↔ linganisha
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