Search results for "reliability"

2021

Background MASK-air® is an app that supports allergic rhinitis patients in disease control. Users register daily allergy symptoms and their impact on activities using visual analog scales (VASs). We aimed to assess the concurrent validity, reliability, and responsiveness of these daily VASs. Methods Daily monitoring VAS data were assessed in MASK-air® users with allergic rhinitis. Concurrent validity was assessed by correlating daily VAS values with those of the EuroQol-5 Dimensions (EQ-5D) VAS, the Control of Allergic Rhinitis and Asthma Test (CARAT) score, and the Work Productivity and Activity Impairment Allergic Specific (WPAI-AS) Questionnaire (work and activity impairment scores). Int…

Calidad de vida en el asma: validación del cuestionario AQLQ para su utilización en población española

1995

The study of morbidity in asthma requires consideration not only of standard physiopathologic and function parameters, but also of the impact the disease has on the patient's life-style as he or she perceives it and evaluates it. The quantification of this factor, known as health-related quality of life (HRQL), is achieved by administering questionnaires specially designed for the purpose. We analyzed the reliability, content validity and construct validity (convergence and divergence) of one instrument, the Asthma Quality of Life Questionnaire (AQLQ) designed by Marks and colleagues. This questionnaire covers 4 dimensions (breathlessness, mood, social limitation and worrying) and gives a t…

Receiving water quality assessment: comparison between simplified and detailed integrated urban modelling approaches

2010

Urban water quality management often requires use of numerical models allowing the evaluation of the cause–effect relationship between the input(s) (i.e. rainfall, pollutant concentrations on catchment surface and in sewer system) and the resulting water quality response. The conventional approach to the system (i.e. sewer system, wastewater treatment plant and receiving water body), considering each component separately, does not enable optimisation of the whole system. However, recent gains in understanding and modelling make it possible to represent the system as a whole and optimise its overall performance. Indeed, integrated urban drainage modelling is of growing interest for tools to …

Quality control in the optical industry: From a work analysis of lens inspection to a training programme, an experimental case study

2007

A cognitive work analysis of quality inspection in the optical industry has been carried out in order to devise a training programme. The task concerned the inspection of high quality human eyeglass lenses. We conducted an experimental investigation of defect detection and acceptability decision-making tasks in 18 experts and novice inspectors. Detection and decision-making were investigated together and separately in two experimental sessions. We showed the effect of expertise on reaction times and errors, and we described the cognitive processes of novice inspectors. On the basis of the processing differences between the two groups, a training programme for new inspectors was devised and …

Uncertainty in urban stormwater quality modelling: The influence of likelihood measure formulation in the GLUE methodology

2009

In the last years, the attention on integrated analysis of sewer networks, wastewater treatment plants and receiving waters has been growing. However, the common lack of data in the urban water-quality field and the incomplete knowledge regarding the interpretation of the main phenomena taking part in integrated urban water systems draw attention to the necessity of evaluating the reliability of model results. Uncertainty analysis can provide useful hints and information regarding the best model approach to be used by assessing its degrees of significance and reliability. Few studies deal with uncertainty assessment in the integrated urban-drainage field. In order to fill this gap, there ha…

Capability studies, helpful tools in process quality improvement

2017

Ability of processes to meet customer’quality requirements has become essential for providing competitive advantages such as cost savings, reducing the number of nonconfoming products or increasing customer satisfaction. This paper aims to conduct a capability study for a swaging process (that ensures an assembly dimension) of a key product characteristic (the outer diameter of a new part), related to the concept of capability and performance indices and how these metrics can be used and interpreted to become powerful tools for decision making. To achieve the goal of the paper, the following key aspects were analyzed: capability of the measurement system capability (gage R&R), production eq…

Cross-cultural adaptation and test-retest reliability of the spanish ROWAN foot pain assessment questionnaire (ROFPAQ-S)

2020

Background The ROWAN Foot Pain Assessment Questionnaire (ROFPAQ) may be considered as a self-reported health questionnaire with 45 items to measure foot health problems such as foot pain. To date, the ROFPAQ has only been validated into an English-language version. Objectives Therefore this study aim was to perform the cross-cultural adaptation and test-retest reliability of the Spanish ROFPAQ version (ROFPAQ-S). Study design A cross-sectional descriptive study. Settings Podiatry and physiotherapy clinical centers. Methods The recommended forward/backward translation protocol was applied for the procedure of translation and cross-cultural adaptation from United Kingdom to Spain. Results An …

Parental-caregiver perceptions of child oral health-related quality of life (P-CPQ): Psychometric properties for the peruvian spanish language.

2013

Objectives: The aim of the study was to cross-culturally adapt the Parental-Caregiver Perceptions Questionnaire (P-CPQ) to the Peruvian Spanish language and assess its reliability and validity. Study Design: To translate and cross-cultural adapt the instrument, 60 parents answered the P-CPQ in two pilot tests. The final version of the P-CPQ was evaluated in 200 parents of children aged 11 to 14 years, who were clini - cally examined for dental caries. The internal consistency was assessed by Cronbach's alpha coefficient while repeat administration of the P-CPQ on the same 200 children facilitated the test-retest reliability via intraclass correlation coefficient (ICC). Construct and discrim…

Validation of the Italian version of the abbreviated expanded prostate Cancer index composite (EPIC-26) in men with prostate Cancer

2019

Abstract Background This study aims to validate and evaluate the psychometric properties and reliability of the Italian version of the Expanded Prostate Cancer Index Composite – Short Form (EPIC-26), a measure of quality of life (QoL) for prostate cancer patients. Methods Two hundred and eighty-four prostate cancer patients completed the Italian version of the EPIC-26 questionnaire at 45 days (T1) and 3 months (T2) after robot-assisted radical prostatectomy (RARP). Psychometric properties were evaluated using structural equation modeling: the goodness of fit of the correlated five-factor model (CFFM) for the EPIC-26 was assessed using the confirmatory factor analysis (CFA), while longitudin…

Validation of eating habits subscale in children (SEHAN: spanish version) from 10 to 12 years

2015

Introducción: La vulnerabilidad de los niños y la actual situación epidemiológica, hace necesario el uso de instrumentos validados para estudiar sus hábitos alimenticios tanto en contextos familiares como en escolares. Objetivo: Validar una Subescala de Hábitos Alimentarios en Niños (SEHAN), de 10 a 12 años. Método: Se validó el instrumento y sus ítems por cinco expertos y apartir de estas valoraciones se calculó el coeficiente de concordancia canónica (CCC). Para la fiabilidad y consistencia interna, 134 estudiantes completaron dos veces la subescala y se calculó el Coeficiente de Correlación Intraclase (CCI), el Coeficiente de Correlación de Spearman (CCS) y el test Wilcoxon. Para la vali…