A Simple Model to Determine the Efficient Duration of Exams.
This study develops a theoretical model for the costs of an exam as a function of its duration. Two kind of costs are distinguished: (1) the costs of measurement errors and (2) the costs of the measurement. Both costs are expressed in time of the student. Based on a classical test theory model, enri...
| Publicado en: | Educational & Psychological Measurement Vol. 81; no. 3; pp. 549 - 569 |
|---|---|
| Autor principal: | |
| Formato: | Artículo |
| Publicado: |
Sage Publications Inc.
Jun2021
|
| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=149986846&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 149986846 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00131644 EPM jtl: Educational & Psychological Measurement issn: 00131644 maglogo: Y pubinfo: dt: Jun2021 vid: 81 iid: 3 pid: 344 pub: Sage Publications Inc. artinfo: ui: 149986846 10.1177/0013164420963163 ppf: 549 ppct: 20 formats: tig: atl: A Simple Model to Determine the Efficient Duration of Exams. aug: au: Ellis, Jules L. affil: Radboud University Nijmegen, Nijmegen, the Netherlands su: Reliability (Personality trait) Rating of students Educational tests & measurements Psychometrics Academic achievement Achievement tests Decision making Confidence intervals Mathematical models Time School failure Sampling errors Theory Descriptive statistics Statistical correlation Measurement errors sug: subj: Reliability (Personality trait) Rating of students Educational tests & measurements Psychometrics Academic achievement Achievement tests Decision making Confidence intervals Mathematical models Time School failure Sampling errors Theory Descriptive statistics Statistical correlation Measurement errors keyword: costs efficient measurement errors reliability study load test length costs efficient measurement errors reliability study load test length ab: This study develops a theoretical model for the costs of an exam as a function of its duration. Two kind of costs are distinguished: (1) the costs of measurement errors and (2) the costs of the measurement. Both costs are expressed in time of the student. Based on a classical test theory model, enriched with assumptions on the context, the costs of the exam can be expressed as a function of various parameters, including the duration of the exam. It is shown that these costs can be minimized in time. Applied in a real example with reliability.80, the outcome is that the optimal exam time would be much shorter and would have reliability.675. The consequences of the model are investigated and discussed. One of the consequences is that optimal exam duration depends on the study load of the course, all other things being equal. It is argued that it is worthwhile to investigate empirically how much time students spend on preparing for resits. Six variants of the model are distinguished, which differ in their weights of the errors and in the way grades affect how much time students study for the resit. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
|---|