OBJECTIVE: Repeated hemarthrosis in hemophilia causes arthropathy with pain and dysfunction. The Hemophilia Joint Health Score (HJHS) was developed to be more sensitive for detecting arthropathy than the World Federation of Hemophilia (WFH) physical examination scale, especially for children and those …

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 …

Falls are common after stroke. This article presents a literature review of the incidence and risk factors of falls and the consequences for professionals working with stroke patients. It is important to consider the specific problems after stroke. Depression and cognitive impairments were found to be …

Studieontwerp: De studie is opgedeeld in twee onderdelen: een systematische review en een interview met drie specialisten op het gebied van chronische a-specifieke lage rugklachten. Doelstellingen: De doelstelling van de systematische review is het evalueren van de effectiviteit van stabilisatie/coördinatie …

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 …

The disease-specific-TACQOL-asthma questionnaire measures health-status and appraisal of health-status. The TACQOL-asthma evaluates the personal feelings about problems in the domains, 'complaints, situations, emotions, treatment and medication'. The TACQOL-asthma can be used alone or in combination …

This paper presents the development and construct validation of an instrument for identification of resilient and less-resilient middle adolescents in high school. Purpose of this identification is a qualitative in-depth interview study of perceptions of resilient and less resilient middle-adolescents …

In dit artikel wordt verslag gedaan van een exploratief onderzoek naar de relatie tussen metacognitieve opvattingen van leerlingen in 3, 4 en 6 VWO enerzijds en hun oriëntatie ten aanzien van de scheikunde anderzijds. In verband hiermee is een onderscheid gemaakt tussen een macro- en een submicro-oriëntatie. …

A construction method is given for all factors that satisfy the assumptions of the model for factor analysis, including partially determined factors where certain error variances are zero. Various criteria for the seriousness of indeterminacy are related. It is shown that B. F. Green's (1976) conjecture …

Anderson and Rubin and McDonald have proposed a correlation-preserving method of factor scores prediction which minimizes the trace of a residual covariance matrix for variables. Green has proposed a correlation-preserving method which minimizes the trace of a residual covariance matrix for factors. …