A Least Squares Solution for Successive Intervals Assuming Unequal Standard Deviations  

Oleh:

Gulliksen, Harold

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 19 no. 2 (Jun. 1954), page 117-139.
Topik: Successive Intervals; Solution for Errorless Data; Squares Solution; Equal r ii; Average r ii; Terms of the Stimuli; Matrix of Incomplete Data
Fulltext: Vol 19 No 2 June 1954 p.117-139.pdf (871.32KB)

Isi artikel

A least squares solution has been presented for the Law of Categorical Judgment and the Method of Successive Intervals, which is formally equivalent to Horst's solution for the matrix of incomplete data. A simplified approximation which is recommended for use with any matrix of complete data is also given. A procedure, analogous to that originally devised by Thurstone and presented by Saffir, is outlined for the typical experimental matrix of incomplete data. It is essentially a “point and slope” method of fitting a straight line which comes rather directly from the least squares solution.

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