Search results for "EIV"
showing 10 items of 833 documents
Impacto del estatus de fragilidad sobre la salud y calidad de vida en personas mayores españolas
2020
Resumen: Objetivo: El objetivo de este trabajo se centra en evaluar la capacidad predictiva de una medida latente de fragilidad basada en los indicadores físicos propuestos para la Encuesta de Salud, Envejecimiento y Jubilación en Europa (SHARE) sobre la calidad de vida y la salud general percibida de una muestra representativa de personas mayores españolas. Diseño: Estudio descriptivo transversal. Emplazamiento: España. Participantes: La muestra estuvo compuesta por 4.498 personas mayores de 60 años que residían en la comunidad cuyos datos se obtuvieron de la sexta ola de la encuesta SHARE. Mediciones principales: Se empleó un modelo de ecuaciones estructurales para definir el factor de fr…
In vitro perception of low-contrast features in digital, film, and digitized dental radiographs: A receiver operating characteristic analysis
2005
Objective To compare experimentally the image quality of charged-coupled device (CCD)-based digital, flatbed scanner digitized, and dental film radiographs. Study design High-contrast standardized radiographs of an aluminum step wedge containing boreholes were obtained on dental radiographic film (F) and a CCD receptor (D). Digitization (S) was done with a flatbed scanner. Each radiograph was separated into 23 single images, 18 of which showed a dark spot. Thirty observers indicated their confidence on the visibility of the spots for a receiver operating characteristic (ROC) analysis. Results Mean Az values (area beneath the ROC curves) differed significantly (P < .05), being highest for D …
On Obtaining Classification Confidence, Ranked Predictions and AUC with Tsetlin Machines
2020
Tsetlin machines (TMs) are a promising approach to machine learning that uses Tsetlin Automata to produce patterns in propositional logic, leading to binary (hard) classifications. In many applications, however, one needs to know the confidence of classifications, e.g. to facilitate risk management. In this paper, we propose a novel scheme for measuring TM confidence based on the logistic function, calculated from the propositional logic patterns that match the input. We then use this scheme to trade off precision against recall, producing area under receiver operating characteristic curves (AUC) for TMs. Empirically, using four real-world datasets, we show that AUC is a more sensitive meas…
Predicting Mathematics Achievement in Secondary Education: The Role of Cognitive, Motivational, and Emotional Variables.
2020
Academic achievement in general, and in mathematics in particular, is positively associated not only with cognitive abilities, but also with emotional and motivational skills. The objective of this study was to analyze the prediction strength of cognitive, motivational, and emotional variables in mathematics achievement throughout high school, considering students' gender and age. A large sample of 2,365 Spanish students from the 4 years of high school (12-16 years old) participated in the study. Students provided information about their intellectual skills, perceived competence in mathematics, perceived utility of mathematics, intrinsic interest in learning, mathematics anxiety, and their …
Development of perceived competence, tactical skills, motivation, technical skills, and speed and agility in young soccer players
2015
The objective of this 1-year, longitudinal study was to examine the development of perceived competence, tactical skills, motivation, technical skills, and speed and agility characteristics of young Finnish soccer players. We also examined associations between latent growth models of perceived competence and other recorded variables. Participants were 288 competitive male soccer players ranging from 12 to 14 years (12.7 ± 0.6) from 16 soccer clubs. Players completed the self-assessments of perceived competence, tactical skills, and motivation, and participated in technical, and speed and agility tests. Results of this study showed that players' levels of perceived competence, tactical skill…
The role of perceived autonomy support in predicting university students’ academic success mediated by academic self-efficacy and school engagement
2019
This research analysed relationships between perceived teachers’ autonomy support and academic success, with self-efficacy and school engagement acting as mediators. This was a survey of 870 studen...
MODERN VOLLEYBALL ANALYSIS AND TRAINING PERIODIZATION
2018
The purpose of this study is to clarify the scientific approach to modern volleyball at men´s high-level and introduce the most influential studies, which still are not very well implemented in the world of volleyball. On individual level, requirements of modern volleyball consist psychological aspects like inner motivational and maintaining the focus during the game, which is difficult because there are a lot of breaks and successful and unsuccessful rallies in every volleyball match. Inner motivated player can push himself easier to the limits of his capacity during the game. Good focus and team routines keep the difference between won and lost rally small so that the player and the team …
Online or offline – Does it matter?: A study of in-service teachers' perceptions of learning outcomes in Norway
2020
Policymakers and scholars are scaling up online professional development programmes for teachers. We studied how in-service teachers in Norway perceived their learning outcomes for professional development programmes conducted either as campus-based or online courses. Based on survey data, we found teachers studying online and in campus-based settings have relatively similar perceptions of the learning outcomes. This changes when indicators of collaboration and support from teachers are controlled for, suggesting that these factors are more strongly related to learning outcomes for those in campus-based studies than those in online studies. Our findings contribute new insights on how percei…
Unlocking behaviors of long-term service consumers : the role of action inertia
2017
Purpose The purpose of this paper is to examine the antecedents of word-of-mouth (WOM) in long-term service settings. Specifically, the authors examine the moderating role of action inertia in the relationships between satisfaction and repatronage intention, satisfaction and WOM, and repatronage intention and WOM. Design/methodology/approach The proposed model was empirically tested using survey data from 1,385 telecommunications service subscribers. The data were analyzed using partial least squares path modeling. Findings Results suggest that a positive link between repatronage intention and WOM, hereto a neglected relationship in the marketing literature, in contrast to previous literat…
Measuring Repurchase Intention on Fashion Online Shopping
2020
The internet has become one of many ways for consumers to shop. With the rapid development of internet connection, online shopping has become increasingly popular around the world. All forms of conveniences available through online businesses have lured consumers to switch from offline shopping to online slowly. This research emphasizes the influence of e-service convenience on customer satisfaction, perceived service value, and repurchase intention on fashion online shopping websites in Surabaya. The sample is taken from 115 Surabaya respondents. The sampling technique uses a non-random sampling technique. The analytical method used is the partial least square (PLS). The results show that …