10-16 June 2018
Dalhousie University
America/Halifax timezone
Welcome to the 2018 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2018!

Grade Inflation due to Selective Averaging

13 Jun 2018, 16:15
McCain Scotiabank Auditorium (cap. 250) (Dalhousie University)

McCain Scotiabank Auditorium (cap. 250)

Dalhousie University

Oral (Non-Student) / Orale (non-étudiant(e)) Physics Education / Enseignement de la physique (DPE-DEP) W4-5 Education Research-informed Physics Teaching (DPE) | L'enseignement de la physique enrichi par la recherche en éducation (DEP)


Dr Mandana Sobhanzadeh (Mount Royal university)


When assessing student performance, some educators choose to discard the worst tests written by the student. The mean of the remaining tests is taken as opposed to the mean of all tests written. Naturally, this process will result in some expected grade inflation. In our paper we provide a model for the expected grade inflation in the case when the student’s test-writing ability changes over time. Furthermore, we provide results on the grade inflation when the educator decides to use nested selective averaging processes. The Physics Laboratory post-tests' grades have been analyzed in our model.

Primary authors

Dr Mandana Sobhanzadeh (Mount Royal university) Dr Peter Zizler (Mount Royal University)

Presentation Materials

There are no materials yet.