Search results for "SAMPLE"
showing 10 items of 2270 documents
Parenting behavior and psychodynamic conflicts: Cross-sectional findings in a normative sample of adolescents and their parents
2021
Psychometric Properties of the Multidimensional Fatigue Inventory (MFI-20), Derived From Seven Samples
2019
Abstract Context Fatigue is a frequent symptom in patients suffering from chronic diseases. The Multidimensional Fatigue Inventory (MFI-20) is often used to measure fatigue. The aim of this article was to test the scale structure of the questionnaire. Methods The MFI-20 data were obtained from seven samples, including general population samples and samples of patients with different diseases (N between 122 and 1993). Five confirmatory factor analysis (CFA) models were tested for each sample. Results The scale structure postulated by the original test authors could not be confirmed by the CFAs. The inclusion of a method factor which considers the positive versus the negative orientation of t…
2019
Despite the general consensus regarding the implementation of self-report measures in the training monitoring, there is a lack of research about their applicability and comprehensibility among developing athletes. However, this target group needs special considerations to manage the increasing training demands while maintaining health and performance. This study deals with challenges of applying recovery-stress questionnaires which were validated with adult populations among developing athletes and presents a possible approach to enhance their applicability. In two phases, the Acute Recovery and Stress Scale (ARSS), a 32-adjective list covering eight scales, and the 8-item derived version, …
Normalizing the eating pattern with virtual reality for bulimia nervosa: a case report
2015
AbstractThe aim of the present study was to analyze the effects of a virtual reality (VR) component as a therapeutic tool to normalize eating patterns, as part of the cognitive-behavioral treatment of a bulimia nervosa (BN) patient. Results indicated that the patient made significant progress with her eating habits; binges and vomits were eliminated completely. Moreover, when the VR started the patient avoided food, especially meat (5 over 5), and it was reduction of this avoidance in the lasts sessions (2 and 3 over 5). It was also observed a reduction in the avoidance and the fear of eating (from 10 and 9 to 6 and 5 respectively) and increased the impulse control (from 2 to 7). The patien…
Occupational cognitive complexity and episodic memory in old age
2021
The aim of this study was to investigate occupational cognitive complexity of main lifetime occupation in relation to level and 15-year change in episodic memory recall in a sample of older adults (≥ 65 years, n = 780). We used latent growth curve modelling with occupational cognitive complexity (O*NET indicators) as independent variable. Subgroup analyses in a sample of middle-aged (mean: 49.9 years) men (n = 260) were additionally performed to investigate if a general cognitive ability (g) factor at age 18 was predictive of future occupational cognitive complexity and cognitive performance in midlife. For the older sample, a higher level of occupational cognitive complexity was related to…
Does market concentration affect prices in the urban water industry?
2015
This paper analyzes the relationship between market concentration in the private segment of the water industry and water prices with a sample of municipalities located in the Southern Spanish region of Andalusia. In doing so, several Heckman sample selection models are estimated with the main finding being that market concentration increases the price of water for residential use charged by private companies. The main policy recommendation is that urban water service privatization must be accompanied by the appropriate regulatory and institutional frameworks to promote competition among businesses and monitor water pricing.
The Influence of Entrepreneurial Learning in New Firms’ Performance: A Study in Costa Rica
2014
The creation of new firms is important for the economy, and entrepreneurial learning is essential for the performance of new firms. We contribute to existing knowledge by combining these two topics and considering a third one: The role of multinational companies (MNCs) as a source of learning for the entrepreneur. This approach has rarely been taken in the literature. We investigated the performance of a group of young companies created by former employees of MNCs and their relationship with entrepreneurial learning in such companies. The study was based on a sample of 175 former employees of MNCs in Costa Rica, who founded their own firm between 2001 and 2007. The control group was formed …
La actitud del vendedor ante las innovaciones tecnológicas y su influencia en su desempeño en las ventas
2017
El objetivo de este trabajo es determinar cómo la actitud que tienen los vendedores ante la tecnología puede representar un factor decisivo en la implementación de los procesos de automatización de la fuerza de ventas (AFV). Se parte del modelo de aceptación tecnológica (tam, por su sigla en inglés), que asume que la actitud viene determinada por la utilidad percibida y por la facilidad de uso de esta, e introducimos como novedad en el modelo su relación con el desempeño. Se contrasta el modelo conceptual en una muestra de vendedores colombianos a través de un modelo de ecuaciones estructurales. Los resultados establecen que la percepción de la facilidad de uso de la tecnología influye posi…
Prevalence of nocturnal asthma in a general population sample: determinants and effect of aging.
2000
Nocturnal asthma (NA) is important because of clinical and prognostic implications. Previous data on prevalence may be overestimated, because they are derived from selected series. Observations on monitoring of peak expiratory flow in elderly asthmatics suggested that prevalence of NA may increase with age. This study was designed to estimate the prevalence of NA-related symptoms in a sample drawn from a general population and evaluate the role of aging. Subjects (1,100, mean age 41.9, SD 22.8 years) were randomly selected from the lists of seven general practitioners. A questionnaire on nighttime and morning NA-associated symptoms was used and frequency of occurrence was rated as never, so…
Chronic obstructive lung disease “expert system”: Validation of a predictive tool for assisting diagnosis
2018
Purpose: The purposes of this study were development and validation of an expert system (ES) aimed at supporting the diagnosis of chronic obstructive lung disease (COLD). Methods: A questionnaire and a WebFlex code were developed and validated in silico. An expert panel pilot validation on 60 cases and a clinical validation on 241 cases were performed. Results: The developed questionnaire and code validated in silico resulted in a suitable tool to support the medical diagnosis. The clinical validation of the ES was performed in an academic setting that included six different reference centers for respiratory diseases. The results of the ES expressed as a score associated with the risk of su…