Abstract
An attempt to apply reliability measurements to module assessments in engineering degree programmes is presented in this article. Three techniques for estimating internal consistency - the Cronbach's alpha, KR 21 and split-half methods - were employed in the study. Ten-year data of examination marks were used. The data comprised 13 modules of small- to medium-size classes involving 723 students taught at the university to BSc/BEng engineering degree level. Overall, a majority of modules gave acceptable reliability coefficients of 0.4 to 0.8, based on results obtained from all three methods. A strong correlation was found between Cronbach's alpha and the split-half method. Good correlation of KR 21, with alpha coefficient and split-half methods, occurred only for alpha values exceeding 0.3. It was shown that internal consistency measurement can provide meaningful evaluations of module examinations or assessments in engineering study programmes.
Original language | English |
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Pages (from-to) | 24-29 |
Number of pages | 6 |
Journal | Global Journal of Engineering Education |
Volume | 21 |
Issue number | 1 |
Publication status | Published - 2019 |
Keywords
- assessments
- Cronbach's alpha
- Engineering education
- KR 21
- reliability coefficient
- split-half
ASJC Scopus subject areas
- General Computer Science
- Education