DiVerential item functioning is the degree to which items that comprise a measurement scale are systematically related to various exogenous variables (for example, sex, race, etc) after conditioning on the latent variable of interest, which is often represented by the total scale score. When an item functions diVerentially with respect to an exogenous variable and the source of this diVerential...

DiVerential item functioning is the degree to which items that comprise a measurement scale are systematically related to various exogenous variables (for example, sex, race, etc) after conditioning on the latent variable of interest, which is often represented by the total scale score. When an item functions diVerentially with respect to an exogenous variable and the source of this diVerential...

BACKGROUND The World Health Organization (WHO) has developed the WHOQOL-OLD instrument, specifically measuring quality of life (QoL) elderly, but Indonesian version not been available.
 METHODS This study was conducted in 2 steps. First, instrument translated and pre-tested to 8 elderly respondents from villages Lembang, West Java, Indonesia. Second, Rasch modeling used as implemented by W...

OBJECTIVE The increasing proportion of older adults in the general population and the specific characteristics of this age group show the need for the development of specific instruments to measure quality of life in older adults. The study aimed at describing the development and validation of the Portuguese version of the World Health Organization Quality of Life for Older Persons (WHOQOL-OLD)...

Health-related quality of life (QOL) has become an important topic in health care. However, hardly any attention has been paid to QOL in sarcoidosis. Therefore, the aim of this study was to assess the impact of sarcoidosis on QOL. Sixty-four sarcoidosis patients completed the World Health Organization Quality of Life assessment instrument (WHOQOL-100) and the Beck Depression Inventory (BDI). Fo...

BACKGROUND With increasing access at European universities, supporting and promoting the high education, students' mental well-being and generic employability capacities have become priorities, but their respective influences, after an adaptation period of seven months, remain unclear. OBJECTIVE Our aims were to analyse the relationships between students' well-being and self-perceived academi...

BACKGROUND At the beginning of the 1990s, the World Health Organization (WHO) developed a project in order to create a cross-cultural instrument of quality of life assessment: the World Health Organization Quality of Life (WHOQOL). PURPOSE This paper describes the development of the European Portuguese version of the WHOQOL-100, according to the methodology recommended by the WHO. METHOD Sp...

PURPOSE Quality of life is a key element in the follow-up of people living with HIV/AIDS. The main purpose of this study was to validate the French version of the WHOQOL-HIV instrument by comparing this instrument to a generic questionnaire. The second objective was to test the reproducibility of this questionnaire. METHOD The WHOQOL-HIV and SF-36 questionnaires were filled out by 50 patients...

The objective of this research is to use item response theory (IRT) to validate a 14-item peer relations scale for use in the adolescent treatment population. Subjects are 509 adolescents discharged from substance abuse treatment from 2004-2009. The person reliability is 0.76 and the Cronbach's alpha person raw score reliability is 0.93 both indicating the scale is a strong metric. The item rel...