An Individual Differences Additive Model: An Alterating Least Squares Method with Optimal Scaling Features
- 1 June 1980
- journal article
- Published by Cambridge University Press (CUP) in Psychometrika
- Vol. 45 (2) , 183-209
- https://doi.org/10.1007/bf02294076
Abstract
An individual differences additive model is discussed which represents individual differences in additivity by differential weighting of additive factors. A procedure for estimating the model parameters for various data measurement characteristics is developed. The procedure is evaluated using both Monte Carlo and real data. The method is found to be very useful in describing certain types of developmental change in cognitive structure, as well as being numerically robust and efficient.Keywords
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