From the literature three types of predictors for factor scores are available. These are characterized by the constraints: linear, linear conditionally unbiased, and linear correlation preserving. Each of these constraints generates a class of predictors. Best predictors are defined in terms of L?wner's …

Background & aims:  Individual energy requirements of overweight and obese adults can often not be measured by indirect calorimetry, mainly due to the time-consuming procedure and the high costs. To analyze which resting energy expenditure (REE) predictive equation is the best alternative for indirect …

Background: When the resting energy expenditure (REE) of overweight and obese adolescents cannot be measured by indirect calorimetry, it has to be predicted with an equation. Objective: The aim of this study was to examine the validity of published equations for REE compared with indirect calorimetry …

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Three training conditions were compared in a task of learning locations of cities on a map: one in which participants could avoid errors by searching for the name of the correct city, and two others in which either immediate feedback after each response or delayed feedback after all responses had been …

Er is behoefte aan mensen die bijdragen leveren aan de ontwikkeling van technische producten en processen. Onderwijs heeft de opdracht de technische geletterdheid van leerlingen te ontwikkelen en te zorgen dat ze zich prettig voelen bij het hanteren van techniek. Deze studie focust op de bijdrage die …

The basic level of postural control is functionally active from early infancy onwards: young infants possess a repertoire of direction-specific postural adjustments. Whether or not direction-specific adjustments are used depends on the child's age and the nature of the postural task. The second level …

The assumptions of the model for factor analysis do not exclude a class of indeterminate covariances between factors and error variables (Grayson, 2003). The construction of all factors of the model for factor analysis is generalized to incorporate indeterminate factor-error covariances. A necessary …

Voor het ontwerpen of uitkiezen van het meest geschikte zetmeel in een toepassing wordt gewoonlijk een aanpak op semi-technische schaal via `trial and error' toegepast. Dit is duur en tijdrovend en verreist groet hoeveelheden experimentele proefmonsters.

Sufficient conditions for mean square convergence of factor predictors in common factor analysis are given by Guttman, by Williams, and by Schneeweiss and Mathes. These conditions do not hold for confirmatory factor analysis or when an error variance equals zero (Heywood cases). Two sufficient conditions …