We show how to estimate a Cronbach's alpha reliability coefficient in Stata after running a principal component or factor analysis. Alpha evaluates to what extent items measure the same underlying content when the items are combined into a scale or used for latent variable. Stata allows for testing the reliability …

Background: The purpose of this study was to determine the feasibility and reliability of the modified Berg Balance Scale (mBBS) in persons with severe intellectual and visual disabilities (severe multiple disabilities, SMD) assigned Gross Motor Function Classification System (GMFCS) grades I and II. …

Background: As the world population ages, the number of people with diminished performance on the Activities of Daily Living (ADL) increases. A reliable and valid measure needs to be developed to determine the effects of interventions focused at increasing self-care abilities. We developed the Performance …

AIM: This paper is a report of the development and testing of the psychometric properties of an instrument to measure the accuracy of nursing documentation in general hospitals. BACKGROUND: Little information is available about the accuracy of nursing documentation. None of the existing instruments that …

In KG-18 hebben we verschillende grafieken laten zien. Een veel gebruikte grafische figuur in de statistiek is de zogenaamde boxplot. Weliswaar wordt deze niet vermeld bij de standaard keuzemogelijkheden onder de Wizard Grafieken, toch is het mogelijk om deze figuur met behulp van Excel te tekenen. KG-20 …

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 …

A burden scale is described that is conceptually specific by concentrating on an assessment of different aspects of distress of care-giving burden and conceptually sensitive by distinguishing two dimensions: the relationship of the carer and the care-receiver and the limitations in the personal life …