Measuring Change Conventionally and Adaptively  

Oleh:

Nicewander, W. Alan ; May, Kim

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Educational and Psychological Measurement vol. 58 no. 6 (1998), page 882-897.
Topik: adaptive behavior; psychological tests; changes; measurement; statistical methods
Fulltext: 882.pdf (1.16MB)

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: EE30.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

The ordinary difference or gain score is known generally to be unreliable. However, it is not widely known that when a difference score is used to measure change, the difficulty of the pretest can bias the amount of gain observed in groups that differ in initial achievement. This type of bias we call scale distortion. Using item response theory, one may compute gain scores based on differences score could e removed by using differences based on estimated Os in either conventional or adptive testing situation. Conventional tests that use these O - based gains are shown to remove much of the scale distortion inherent in ordinary difference scores. Adaptive tests using estimated Os also offer substantial improvement in reflecting actual changes in latent proficiency.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali