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- Title
Comparing degree programs from students' assessments: A LCRA-based adjusted composite indicator.
- Authors
Sulis, Isabella; Porcu, Mariano
- Abstract
Taking into account the students' evaluation of the quality of degree programs this paper presents a proposal for building up an adjusted performance indicator based on Latent Class Regression Analysis. The method enables us (i) to summarize in a single indicator statement multiple facets evaluated by students through a survey questionnaire and (ii) to control the variability in the evaluations that is mainly attributable to the characteristics (often referred as the Potential Confounding Factors) of the evaluators (students) rather than to real differences in the performances of the degree programs under evaluation. A simulation study is implemented in order to test the method and assess its potential when the composition of the degree programs as regards to students' characteristics is sensibly different between one another. Results suggest that when the evaluations are strongly affected by the students' covariates, the assessment based on the value of an unadjusted indicator can lead to bias and unreliable conclusions about the differences in performance. An application to real data is also provided.
- Subjects
STUDENTS' Evaluation of Educational Quality (Scale); PERFORMANCE evaluation; FINITE mixture models (Statistics); QUESTIONNAIRES; SIMULATION methods &; models; ACADEMIC degrees; SURVEYS
- Publication
Statistical Methods & Applications, 2012, Vol 21, Issue 2, p193
- ISSN
1618-2510
- Publication type
Article
- DOI
10.1007/s10260-011-0185-9