Journal ArticleDOI
Longitudinal factor analysis
Michael C. Corballis,R. E. Traub +1 more
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In this paper, a model for factor analysing scores on a set of psychological tests administered as both pre- and postmeasures in a study of change is presented, where factors are defined to be orthogonal between as well as within occasions.Abstract:
A model is presented for factor analysing scores on a set of psychological tests administered as both pre- and postmeasures in a study of change. The model assumes that the same factors underlie the tests on each occasion, but that factor scores as well as factor loadings may change between occasions. Factors are defined to be orthogonal between as well as within occasions. A two-stage least squares procedure for fitting the model is described, and generally provides a unique rotation solution for the factors on each occasion.read more
Citations
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Cross-lagged panel correlation: A test for spuriousness.
TL;DR: Cross-lagged panel correlation as mentioned in this paper is a method for testing spuriousness by comparing crosslagged correlations, which is based on a set of assumptions: synchronicity and stationarity.
Book ChapterDOI
Dynamic but Structural Equation Modeling of Repeated Measures Data
TL;DR: The authors examined multivariate psychological change data using the 20th century developments of latent variable structural equation modeling, and used this dynamic equation, but here they also used this simple dynamic equation to examine multivariate psychology change data.
Journal ArticleDOI
The cognitive and neuroanatomical correlates of multitasking
TL;DR: There are three primary constructs that support multitasking: retrospective memory, prospective memory, and planning, with the second two drawing upon the products of the first.
BookDOI
Best methods for the analysis of change : recent advances, unanswered questions, future directions
Linda M. Collins,John L. Horn +1 more
Journal ArticleDOI
Arithmetic fact mastery in young children: a longitudinal investigation.
TL;DR: Children with poor arithmetic fact mastery at the end of third grade were compared to grade-level peers with goodithmetic fact mastery in competencies related to reading and mathematics, and both groups progressed at a comparable rate on math story problems and on broad reading achievement.
References
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Journal ArticleDOI
The approximation of one matrix by another of lower rank
Carl Eckart,Gale Young +1 more
TL;DR: In this paper, the problem of approximating one matrix by another of lower rank is formulated as a least-squares problem, and the normal equations cannot be immediately written down, since the elements of the approximate matrix are not independent of one another.
Journal ArticleDOI
Alpha factor analysis.
Henry F. Kaiser,John Caffrey +1 more
TL;DR: A new method of factor analysis based upon the psychometric concept of generalizability is described, which determines factors which have maximumgeneralizability in the Kuder-Richardson, or alpha, sense.
Journal ArticleDOI
VI.—The Estimation of Factor Loadings by the Method of Maximum Likelihood
TL;DR: In this paper, it is assumed that for a given and supposed infinite population of persons all the factors, specific and otherwise, are distributed normally and independently and that they are standardised, i.e. their standard deviations are unity.