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Development and validation of the Portuguese version of the WHOQOL-OLD module
Fleck,Marcelo P; Chachamovich,Eduardo; Trentini,Clarissa;
Revista de Saúde Pública , 2006, DOI: 10.1590/S0034-89102006000600007
Abstract: 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) module. methods: the whoqol-old instrument was administered in a sample of 424 older adults in the city of porto alegre, southern brazil, in 2005. the questionnaire comprises 24 items divided into six facets: sensory abilities; autonomy; past, present and future activities; social participation; death and dying; and intimacy. besides the whoqol-old module, the whoqol-bref, bdi and bhs instruments were also applied. the instrument's internal consistency was assessed using cronbach's alpha coefficient. results: the instrument showed adequate internal consistency (cronbach's coefficients ranging from 0.71 to 0.88), discriminant validity (p<0.01), concurrent validity (correlation coefficients ranging from -0.61 to -0.50) and test-retest reliability (correlation coefficients ranging from 0.58 to 0.82). findings concerning criterion validity need further studies. conclusions: the whoqol-old module is a useful alternative with good psychometric performance in the investigation of quality of life in older adults.
Quality of life in the elderly: Psychometric properties of the WHOQOL-OLD module in Mexico  [PDF]
Ana Luisa González-Celis, Juana Gómez-Benito
Health (Health) , 2013, DOI: 10.4236/health.2013.512A015
Abstract:

The purpose was to examine and compare the psychometric properties of a Mexican Spanish version of the WHOQOL-OLD module. The instrument was applied to 285 individuals aged over 60 years (mean = 69.26, SD = 6.52). All participants completed a demographic data sheet, the WHOQOL-OLD, the Beck Depression Inventory (BDI), and the Geriatric Depression Scale (GDS); 182 of the 285 participants also completed a quality of life questionnaire for diabetic patients (DQOL). Acceptable levels of reliability were found, with Cronbach’s alpha values between 0.70 and 0.90 for overall quality of life and all domains except for autonomy, where the alpha value was low. The exploratory factor analysis carried out to examine the construct validity of the instrument yielded six domains: sensory abilities, autonomy, past/present/future activities, social participation, death and dying, and intimacy (explained variance of 62.95%). The mean overall quality of life score was 94.86 (SD = 13.68, range 50 to 120). The WHOQOL-OLD module showed criterion validity and concurrent validity with respect to the BDI (r = -0.516, p = 0.034), the GDS (r = -0.336, p = 0.002), and the DQOL (n = 182, r = 0.159, p = 0.032). Discriminant validity was also confirmed with respect to self-perceived health (t = 2.701, d.f. = 225, p = 0.007) and education (F(3, 280) = 9.015, p < 0.001), for both overall quality of life and some of its dimensions, but this was not the case with respect to gender (t = 1.292, d.f. = 283, p > 0.05). We conclude that the Mexican Spanish version of the WHOQOL-OLD module has adequate psychometric properties.

The Psychometric Properties of the Older People's Quality of Life Questionnaire, Compared with the CASP-19 and the WHOQOL-OLD  [PDF]
Ann Bowling
Current Gerontology and Geriatrics Research , 2009, DOI: 10.1155/2009/298950
Abstract: Purpose. To present the psychometric properties of a new measure of quality of life in older age, the Older People's Quality of Life (OPQOL) Questionnaire, compared with the CAPSE-19 and the WHOQOL-OLD. Design and Methods. The vehicle was three national population surveys of older people living at home in Britain, including a survey of ethnically diverse older people. Results. The OPQOL had acceptable levels of reliability and validity in British population samples of older people, but more modest in the ethnically diverse population sample. The CASP-19 and WHOQOL-OLD had acceptable levels of reliability and validity in the British population sample, but not in the ethnically diverse sample. Implications. The OPQOL has potential for use as a multidimensional population surveillance instrument for use with older populations, or as an outcome measure of multisector policy. Its strengths are that its development was embedded firmly in the perspectives of older people, integrated with theory.
Projeto WHOQOL-OLD: método e resultados de grupos focais no Brasil
Fleck,Marcelo P A; Chachamovich,Eduardo; Trentini,Clarissa M;
Revista de Saúde Pública , 2003, DOI: 10.1590/S0034-89102003000600016
Abstract: objectives: exploring the conditions that allow satisfactory quality of life in old age is an issue of scientific and social relevance. thus, the objective of the study was to describe a quality of life assessment method for the elderly and present the results from focus groups conducted among old people in good health and ill health, as well as their caregivers. methods: the methodology used in the whoqol-old project is the same as utilized in the development of other whoqol modules. five focus groups were conducted in brazil. the sampling procedure was done according to convenience. eighteen old people and five caregivers took part in the focus groups. all the focus groups followed a pre-established methodology. results: a tendency towards making an association between quality of life and wellbeing and feeling well was observed. the responses spontaneously included the 6 domains proposed in whoqol-100, thus corroborating the multidimensional nature of this construction. nineteen out of the 24 original facets of this instrument were cited as relevant, and the five facets not spontaneously remembered were not concentrated in a single domain. when questioned about the importance of each of the 24 facets of whoqol-100, the groups considered all of them to be relevant. however, suggestions for modifications to five facets were made. additional items were also examined and considered relevant for assessing quality of life among the elderly, by both the old people and the caregivers. conclusions: the results corroborate the hypothesis that old people constitute a particular group and, as such, they have relevant specific characteristics. thus, an appropriate instrument for assessing quality of life among the elderly needs to consider such matters.
Brazilian WHOQOL-OLD Module version: a Rasch analysis of a new instrument
Chachamovich,Eduardo; Fleck,Marcelo P; Trentini,Clarissa; Power,Mick;
Revista de Saúde Pública , 2008, DOI: 10.1590/S0034-89102008000200017
Abstract: objective: to evaluate the brazilian version of whoqol-old module and to test potential changes to the instrument to increase its psychometric adequacy. methods: a total of 424 older adults living in a city in southern brazil completed the whoqol-old instrument, in 2005. rasch analysis was used to explore the psychometric performance of the scale, as implemented by the rumm2020 software. item-trait interaction, threshold disorders, presence of differential item functioning and item fit, were analyzed. results: two ("death and dying" and "sensory abilities") out of six domains showed inadequate item-trait interactions. rescoring the response scale and deleting the most misperforming items led to scale improvement. the evaluation of domains and items individually showed that the "intimacy" domain does perform well in contrast to the findings using the classical approach. in addition, the "sensory abilities" domain does not derive an interval measure in its current format. conclusions: unidimensionality and local independence were seen in all domains. changes in the response scale and deletion of problematic items improved the scale's performance.
Projeto WHOQOL-OLD: método e resultados de grupos focais no Brasil  [cached]
Fleck Marcelo P A,Chachamovich Eduardo,Trentini Clarissa M
Revista de Saúde Pública , 2003,
Abstract: OBJETIVO: A investiga o sobre as condi es que permitem uma boa qualidade de vida na velhice é de interesse científico e social. Assim, o estudo objetivou apresentar a metodologia utilizada e os resultados dos grupos focais para avalia o da qualidade de vida do idoso. MéTODOS: A metodologia do projeto WHOQOL-OLD é a mesma utilizada no desenvolvimento de outros módulos do WHOQOL. Foram realizados cinco grupos focais no Brasil. O método amostral foi o de conveniência. Dezoito idosos e cinco cuidadores participaram dos grupos focais. Todos os grupos obedeceram a uma metodologia pré-estabelecida. RESULTADOS: Observou-se uma tendência de associa o entre qualidade de vida e bem-estar ou sentir-se bem. Espontaneamente, as respostas incluíram os seis domínios propostos no WHOQOL-100, refor ando a multidimensionalidade do construto. Das 24 facetas originais, 19 foram citadas como relevantes, sendo que as cinco facetas n o espontaneamente lembradas n o se centraram em um único domínio. Quando perguntados sobre a importancia de cada uma das 24 facetas do WHOQOL-100, os grupos consideraram-nas todas relevantes. Foram sugeridas modifica es para serem aplicadas a idosos para cinco facetas. Itens adicionais também foram examinados e considerados relevantes para a avalia o de qualidade de vida em idosos, tanto pelos idosos entrevistados como pelos cuidadores. CONCLUS ES: Os resultados corroboram com a hipótese de que os idosos constituem um grupo particular e, como tal, apresentam especificidades de importante relevancia para a qualidade de vida. Assim, um instrumento adequado para a avalia o da qualidade de vida de idosos tem que necessariamente contemplar esses aspectos.
Clasificación no Jerárquica con coordenadas factoriales  [cached]
Bautista S. Leonardo,Abdón García Hernán
Revista Colombiana de Estadística , 1995,
Abstract: Para un conjunto de n puntos p-dimensionales se desea obtener k clases disjuntas no vacías, en forma tal que la clasificación sea óptima, es decir que la inercia ENTRE sea máxima. La característica importante del conjunto de datos es que tanto n como p son muy grandes, lo cual implica que la utilización de los métodos clásicos de clasificación puede presentar serios inconvenientes. El análisis factorial se aplica como un paso intermedio que permite reducir la dimensión y establecer ejes factoriales (ortogonales) a utilizar en la tarea clasificatoria. El objetivo de este trabajo es analizar los efectos de tal procedimiento sobre los resultados finales de la clasificada. Puesto que los métodos de clasificación son de tipo algoritmo es imposible realizar una inveatigación de tipo analítico, por tal razón se planteó un estudio de tipo experimental.
Explicando o significado do WHOQOL-SRPB
Fleck, Marcelo P.;Skevington, Suzanne;
Revista de Psiquiatria Clínica , 2007, DOI: 10.1590/S0101-60832007000700018
Abstract: background: whoqol-srpb is an instrument developed to evaluate how spirituality, religiosity and personal beliefs (srpb) are related to quality of life in health and health care. recently, moreira-almeida and koenig (2006) questioned several aspects concerning whoqol-srpb including de definition of the construct used in the instrument and the fact that its facets are too broad to be considered spirituality and religiosity. the present study is an answer to these questions, based on the clarification of some concepts behind the development of the whoqolo-srpb. objectives: to clarify the concepts behind the development of the whoqol-srpb. methods: the questions raised by moreira-almeida and koenig (2006) were discussed based on the objectives and conceptual framework of the whoqol-srpb and also on the pertinent literature. results: 1) whoqol-srpb is not an instrument developed to evaluate srpb but quality of life construct; 2) personal beliefs may function as a strategy to cope with life problems, since they give meaning to human behavior and hypothetically influence quality of life; 3) srpb is a coherent construct and may be considered an independent construct specially concerning psychological well-being; 4) the concepts included in the whoqol project were considered genuine cross-cultural concepts through international consensus and this is one of its major strengths. conclusions: whoqol-srpb should be seen as an important contribution to the study of the relationship between quality of life and spirituality, religiosity and personal beliefs.
Association among physical, psychiatric and socioeconomic conditions and WHOQOL-Bref scores
Blay, Sergio Luís;Marchesoni, Marina Sthal Merlin;
Cadernos de Saúde Pública , 2011, DOI: 10.1590/S0102-311X2011000400007
Abstract: the aim of this study is to investigate the impact of psychiatric morbidity, depression, cognitive deficit, number of self-reported illnesses and socio-demographic variables on the whoqol-bref domain scores. whoqol-bref domain scores are substantially affected by psychiatric morbidity and income. depression, the number of self-reported illnesses and the female gender also explain the variability of other domains to a lesser extent.
Identificación de celdas atípicas en experimentos factoriales mediante el uso de regresión robusta  [cached]
Vargas N. José Alberto
Revista Colombiana de Estadística , 1998,
Abstract: La identificación de celdas atípicas en dise os factoriales puede llevarse a cabo de una forma más eficaz mediante la utilización de estimadores M redescending. En regresión robusta se les asigna un peso peque o a estas celdas. Se propone un método que permite identificar estas celdas cuando se ajusta un modelo de orden menor a las median as de las observaciones recolectadas en cada celda.
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