Recent proposals to estimate transient error within the classical test theory tradition

Autor: G K Huysamen
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: SA Journal of Industrial Psychology, Vol 32, Iss 4 (2006)
Druh dokumentu: article
ISSN: 0258-5200
2071-0763
DOI: 10.4102/sajip.v32i4.248
Popis: Reliability is conceptually defined in terms of consistency across test occasions but coefficient alpha, the most popular reliability estimation method, precludes the examination of such consistency. Three recent proposals to estimate transient error separately within a classical test theory tradition, and the results that they have yielded are reviewed. The merits of these proposals are compared with those of generalisability theory which differentiates between different sources of error variation. Although the procedures reviewed cannot match the advantages of generalisability theory, they may be sufficient in many applications.
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