PURPOSE To assess and validate the subscale structure of the 28-item Impact of Visual Impairment (IVI) Scale by using confirmatory factor analysis (CFA) and Rasch analysis for use as an outcome measure. METHODS Three hundred nineteen participants completed the IVI questionnaire, and the responses then were subjected to Rasch analysis by RUMM2020 software. With the person estimates for each it...

OBJECTIVE To develop a health status measure in older African-American women with type 2 diabetes. RESEARCH DESIGN AND METHODS African-American women, age > or =40 years with type 2 diabetes, were recruited from central North Carolina to participate in three sequential phases: 1) Seven focus groups were convened and transcripts evaluated to generate questions and identify plausible domains; 2...

CONTEXT Valid patient-based outcome instruments are necessary for comprehensive patient care that focuses on all aspects of health, from impairments to participation restrictions. OBJECTIVE To validate the Slovenian translation of Medical Outcome Survey (MOS) Short Form Health Survey (SF-36) and to assess relations among various knee measurements, activity tested with Oxford Knee Score (OKS) ...

Attraction to physical activity is important to an individual's intrinsic motivation to engage in play, games and sports. While there are instruments designed to measure attraction to physical activity in middle childhood years, the lack of authentic measures in young children has impeded research in this area. In this study we sought to address the validity of a scale to tap young children's a...

A rating scale measuring care status related to assistance with basic ADL for demented patients was developed. This instrument, named the ABCD, is designed to be completed by family and professional caregivers, and consists of two subscales assessing the level of difficulty of help with the ADL (difficulty scale) and the reasons why assistance is needed (reason category). In the difficulty scal...

Background: Copenhagen hip and groin outcome score (HAGOS) is the only valid and reliable self-reported questionnaire for assessing symptoms and activity limitations of subjects with hip and groin problems. The aim of this study was to translate and culturally adapt the English version of the HAGOS to Persian and to evaluate its reliability in young athletes with hip and groin pain. Methods: T...

The Eating Inventory (EI) is commonly used to measure a range of eating behaviors. It includes three subscales: Cognitive Restraint, Hunger, and Disinhibition. In this study, we decomposed the variance of the three subscales, and evaluated the genetic, common environment and specific environmental effects on each in a sample of female-female twin pairs. Multivariate models were also used to exa...

Objectives: This study investigates the longitudinal association between 5-year weight change and quality of life (QoL) in Dutch men and women. Subjects: 2,414 men and women from the Maastricht region of the Netherlands. Measurements: QoL outcomes were measured by the RAND-36 (eight subscales and two overall 5 composite scores, physical and mental health (PCS and MCS)). Weight was measured on a...

BACKGROUND This study validates the Chinese Dementia-Quality of Life instrument (DQoL) in patients with early to moderate stages of Alzheimer's disease (AD) (Clinical Dementia Rating Scale, CDR=0.5, 1, and 2; MMSE >or= 12). METHODS A cross-sectional design was used involving 98 participants (27 controls, 35 patients with questionable dementia (QD), and 36 patients with mild to moderate AD) an...

Although the general public appears to have embraced the term ‘videogame addiction’, the scientific debate as to whether ‘gaming addiction’ can actually be considered an addiction similar to substance addictions of DSM-IV is still unsettled. To date, research on gaming addiction has focused on problematic behavior from the gaming activity itself and there has been little empirical research rela...