Examine Characteristics and Score Reliability : An Empirical Investigation  

Oleh:

Xitao, Fan ; Ping, Yin

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Educational and Psychological Measurement vol. 63 no. 3 (Jun. 2003), page 357-368.
Topik: TEST SCORES; score reliability; group heterogeneity; performance; measurement error
Fulltext: 357.pdf (90.98KB)

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: EE30.9 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

The literature on measurement reliability shows the general consensus that examinee group heterogeneity with regard to the trait being measured affects the score reliability. Potentially, the performance level of the examinee group may also affect score reliability bacuse of tis potential effect on the relative magnitude of error variance. This article empirically examines the effects of these two examinee sample characteristics on score reliability of optimal - performance measurement. Two large extant data sets (criterion - and norm - referenced, respectively) were used in the investigation. The results suggest the both performance variability and group performance level affect score reliability, and measurement error tends to be smaller for high - performance groups than for low - performance groups.

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