نتایج جستجو برای: items measures
تعداد نتایج: 422248 فیلتر نتایج به سال:
BACKGROUND Diabetes has a high burden of illness both in life years lost and in disability through related co-morbidities. Accurate assessment of the non-mortality burden requires appropriate health-related quality of life and summary utility measures of which there are several contenders. The study aimed to measure the impact of diabetes on various health-related quality of life domains, and c...
BACKGROUND Measures of household socio-economic position (SEP) are widely used in health research. There exist a number of approaches to their measurement, with Principal Components Analysis (PCA) applied to a basket of household assets being one of the most common. PCA, however, carries a number of assumptions about the distribution of the data which may be untenable, and alternative, non-para...
The objectives of the research project described in this paper are (1) to develop reliable and valid measures for the components of online store image, and (2) to examine the influence of these components on the intention to purchase online. Conceptually, the project relies on the relatively established literature on “traditional” store image and the emerging electronic commerce literature seek...
INTRODUCTION Within an ongoing project of the EORTC Quality of Life Group, we are developing computerized adaptive test (CAT) measures for the QLQ-C30 scales. These new CAT measures are conceptualised to reflect the same constructs as the QLQ-C30 scales. Accordingly, the Fatigue-CAT is intended to capture physical and general fatigue. METHODS The EORTC approach to CAT development comprises fo...
We consider two settings of online learning to rank where feedback is restricted to top ranked items. The problem is cast as an online game between a learner and sequence of users, over T rounds. In both settings, the learners objective is to present ranked list of items to the users. The learner’s performance is judged on the entire ranked list and true relevances of the items. However, the le...
Background: Measures of household socio-economic position (SEP) are widely used in health research. There exist a number of approaches to their measurement, with Principal Components Analysis (PCA) applied to a basket of household assets being one of the most common. PCA, however, carries a number of assumptions about the distribution of the data which may be untenable, and alternative, non-par...
The objectives of the research project described in this paper are (1) to develop reliable and valid measures for the components of online store image, and (2) to examine the influence of these components on the intention to purchase online. Conceptually, the project relies on the relatively established literature on “traditional” store image and the emerging electronic commerce literature seek...
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