Search results for " consistency"
showing 10 items of 123 documents
Propiedades Psicométricas de la Escala de Creencia en un Mundo Justo General y Personal en el Contexto Argentino
2018
El objetivo principal de este trabajo fue analizar las propiedades psicométricas de las Escalas de Creencia en un Mundo Justo General y Personal. Para tal fin, se examinó la estructura interna de ambas, testeando si evalúan un mismo constructo global o constituyen dos dimensiones diferenciadas, la consistencia interna de cada una y sus relaciones con las orientaciones religiosas. Participaron del estudio 328 estudiantes universitarios de la Ciudad Autónoma de Buenos Aires con edades entre 18 y 40 años (M = 24,1; DT = 3,88). El 36,6% eran hombres (n = 120) y el 63,4% mujeres (n = 208). Los resultados del estudio sugieren propiedades psicométricas adecuadas para ambas escalas de CMJ. Además, …
Exploitation of SAR and Optical Sentinel Data to Detect Rice Crop and Estimate Seasonal Dynamics of Leaf Area Index
2017
This paper presents and evaluates multitemporal LAI estimates derived from Sentinel-2A data on rice cultivated area identified using time series of Sentinel-1A images over the main European rice districts for the 2016 crop season. This study combines the information conveyed by Sentinel-1A and Sentinel-2A into a high-resolution LAI retrieval chain. Rice crop was detected using an operational multi-temporal rule-based algorithm, and LAI estimates were obtained by inverting the PROSAIL radiative transfer model with Gaussian process regression. Direct validation was performed with in situ LAI measurements acquired in coordinated field campaigns in three countries (Italy, Spain and Greece). Res…
Classification of the European marsh vegetation (Phragmito‐Magnocaricetea) to the association level
2020
Aims: To create a comprehensive, consistent and unequivocal phytosociological classification of European marsh vegetation of the class Phragmito-Magnocaricetea. Location: Europe. Methods: We applied the Cocktail method to a European data set of 249, 800 vegetation plots. We identified the main purposes and attributes on which to base the classification, defined assignment rules for vegetation plots, and prepared formal definitions for all the associations, alliances and orders of the class Phragmito-Magnocaricetea using formal logic. Each formula consists of the combination of “functional species groups”, cover values of individual species, and in the case of high-rank syntaxa also of “disc…
Measuring Orthorexia Nervosa: Psychometric Limitations of the ORTO-15.
2017
AbstractOrthorexia nervosa has recently been defined as excessive preoccupation with healthy eating, causing significant nutritional deficiencies and social and personal impairments. The ORTO-15 is the most widely used instrument to evaluate orthorexia nervosa, although previous studies obtained inconsistent results about its psychometric properties, and there are no data on the Spanish version. Thus, the main objective of the present study was to analyze the psychometric properties of the Spanish adaptation of the ORTO-15. In order to cross-validate the results, two independent samples were used (Sample 1: n = 807, 74.1% women; Sample 2: n = 242, 63.2% women). The results did not support t…
Assessment of learning strategies with the ACRA and the Brief-ACRA scales: Competitive models, measurement invariance, and prediction of academic ach…
2021
Abstract Learning strategies have been widely studied, and they have been related to academic achievement in several studies. Among the measurement instruments developed, the 44-item version of the Learning Strategies Scale (ACRA) is, by far, one of the most widely used questionnaires in the Spanish speaking context. This instrument has been recently shortened to a 17-item version. Neither the 44-item nor the 17-item version have been tested in the Dominican Republic. The aim of this study is to study the psychometric properties of the 44-item and 17-item versions of the ACRA. Participants were 1712 Dominican secondary school students. Both structures of the ACRA were tested via CFA; alpha …
Eventual Consistency Formalized
2019
Distribution of computation is well-known, and there are several frameworks, including some formal frameworks, that capture distributed computation. As yet, however, models of distributed computation are based on the idea that data is conceptually centralized. That is, they assume that data, even if it is distributed, is consistent. This assumption is not valid for many of the database systems in use today, where consistency is compromised to ensure availability and partition tolerance. Starting with an informal definition of eventual consistency, this paper explores several measures of inconsistency that quantify how far from consistency a system is. These measures capture key aspects of e…
A reliability generalization meta‐analysis of self‐report measures of muscle dysmorphia
2020
This study is a reliability generalization meta‐analysis that reviews continuous measures used to assess muscle dysmorphia (MD): The Muscle Appearance Satisfaction Scale, Muscle Dysmorphic Disorder Inventory, four different versions of the Muscle Dysmorphia Inventory, Adonis Complex Questionnaire, and the Modified Dysmorphia Symptoms Questionnaire. A total of 15,156 individuals from 61 studies provided 73 reliability estimates (alpha coefficients and/or test–retest reliability coefficients) for this meta‐analysis. Random‐ and mixed‐effects models were applied in the statistical analyses. We present the average reliability estimates for each measure, moderator analysis of reliability estimat…
Spanish Adaptation and Validation of the Outcome Questionnaire OQ-30.2
2017
This study assessed the psychometric properties of a Spanish version of the Shortened Outcome Questionnaire (OQ-30.2, Lambert et al., 2004) validated with a sample of 546 patients in an outpatient mental health clinic and 100 non-clinical adults in Chile. Our results show that this measure has similar normative data to the original measure, with a cutoff score for the Chilean population set at 43.36, and the reliable change index at 14. This Spanish OQ-30.2 has good internal consistency (α = 0.90), has concurrent validity with the Depressive, Anxious, and Somatoform disorders measuring scale (Alvarado and Vera, 1991), and is sensitive to change during psychotherapy. Consistent with previous…
Validation of a questionnaire of attributions to the detection of coincidences in academic work
2019
El plagio como tema de investigación en el contexto universitario no ha cesado de ser una preocupación constante debido a sus múltiples repercusiones. El presente estudio describe el proceso seguido en la validación del Cuestionario de atribuciones para la detección de coincidencias en trabajos académicos (CUDECO), cuya finalidad es evaluar la relevancia que tiene citar correctamente y detectar las causas que llevan a cometer plagio. A partir de una muestra de 2,331 estudiantes, se realiza un anális is de la fiabilidad como consistencia interna y un análisis factorial exploratorio (AFE) del instrumento. El análisis de la fiabilidad lleva a proponer un reajuste en el cuestionario inicialment…
Flexibility in otherwise consistent non-breeding movements of a long-distance migratory seabird, the long-tailed skua
2017
Quantifying within- and between-individual variation in animal migration strategies is a first step towards our understanding of the ability of migrants to adjust to changes in the en - vironment. We studied consistency (or, conversely, flexibility) in movement patterns at large (>1000 km) to meso-scales (100−1000 km) during the non-breeding season of the long-tailed skua Stercorarius longicaudus, a long-distance migratory Arctic seabird, using light-based geolocation. We obtained 97 annual tracks of 38 individuals and quantified similarity between routes. Overall, tracks of the same individual were generally within about 200 to 300 km of their previous year’s route, and more similar than t…