The Scaling of Practice Data  

Oleh:

Woodrow, Herbert

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 2 no. 4 (Dec. 1937), page 237-247.
Topik: Scaling; Practice Data
Fulltext: The Scaling of Practice Data.pdf (498.56KB)

Isi artikel

It is shown that in certain cases practice data approximately meet the assumptions involved in Thurstone's method of absolute scaling. An application of the method was accordingly made in the case of four test performances practiced for 39 days by a group of 56 subjects. The manner in which the practice data were scaled is described by using the data on practice in anagrams as an illustration. Scaling had little effect upon the correlations between initial and final score, but produced marked changes in the apparent effect of practice upon individual differences and in the correlations between initial score and gain.

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