Search results for "dropout"

Leveraging Uncertainty Estimates to Improve Segmentation Performance in Cardiac MR

2021

In medical image segmentation, several studies have used Bayesian neural networks to segment and quantify the uncertainty of the images. These studies show that there might be an increased epistemic uncertainty in areas where there are semantically and visually challenging pixels. The uncertain areas of the image can be of a great interest as they can possibly indicate the regions of incorrect segmentation. To leverage the uncertainty information, we propose a segmentation model that incorporates the uncertainty into its learning process. Firstly, we generate the uncertainty estimate (sample variance) using Monte-Carlo dropout during training. Then we incorporate it into the loss function t…

Student outcomes in Philippine elementary schools: An evaluation of four experiments

1999

International audience; Policymakers in most developing countries are concerned about high dropout rates and poor student learning in primary education. The government of the Philippines initiated the Dropout Intervention Program in 1990-92 as part of its effort to address these issues. Under this program, four experimental interventions were randomly assigned to 20 schools in selected low-income areas. Pre- and post-intervention data were collected from these schools, as well as from 10 control schools, in order to evaluate the program's impact on dropout behavior and student learning. The economic justification for replication appears to be strongest for the interventions that provided te…

Les élèves français et québécois à risque de décrochage scolaire : comparaison entre les facteurs de risque personnels, familiaux et scolaires

2011

This comparative study aimed to compare factors that are associated to the risk of dropping out of school amongst students from lower secondary school (12-16) in France (Aquitaine) and Quebec (Estrie). Results indicate that the factors that differentiate at risk and non at risk students are personal, family and school factors with a predominance of school factors whichever the country. This research work confirms the complexity of factors that impact on early school leaving and the necessity of devising multi-level interventions while considering the diversity of school droppers.

Student Engagement, Truancy, and Cynicism

2021

Abstract Truancy in upper secondary education is a widespread problem, which contributes significantly to school dropout risk. However, the underlying mechanisms of truancy have remained unstudied. This longitudinal study of 1853 Finnish students examined how initial levels and changes in student engagement from primary (Grade 6) to lower secondary school (Grades 7 and 9) predicted truancy in upper secondary education, and whether cynicism (losing interest in school) mediated the relationship between engagement and truancy. Growth curve models showed that high engagement levels in primary school and increases in engagement over time predicted less truancy in upper secondary education. Cynic…

2020

Abstract A person-centered approach was used to identify the profiles of symptoms of psychological ill-being among Finnish upper secondary education students (N = 2889); to examine whether gender and educational track (i.e., academic or vocational) are associated with these profiles; and to investigate the role of profiles in school dropout intentions. Using latent profile analysis, one asymptomatic profile (normative, 79.2%) and three symptomatic profiles (internalizing symptoms, 9.1%; externalizing symptoms, 9.1%; and comorbid symptoms, 2.6%) were identified. Boys in the vocational track were overrepresented in the externalizing-symptoms profile, whereas girls in both tracks were overrepr…

The reliability and validity of the sport engagement instrument in the Finnish dual career context

2021

Although engagement is key to predicting burnout and dropout, few existing instruments measure this phenomenon in the sports context. As part of a larger three-year Lower Secondary Sports Schools Pilot Project (LSSSPP) in Finland, we conducted two studies as part of the present research with the major aims of (a) constructing the Sport Engagement Instrument (SpEI) and (b) validating the new instrument in the Finnish dual career context. In the preparatory study, an expert panel constructed the SpEI, a questionnaire comprising 37 items intended to measure cognitive and affective sports engagement. The main study utilised questionnaire data collected from two independent samples (n1 = 992 and…

Lo que hacen las mejores escuelas integradoras de alumnado inmigrante: un modelo para su análisis y prospectiva.

2016

Immigration is a phenomenon which has changed the social scene of all over the countries and has increased alongside a world becoming even more global. These social changes have generated new challenges in educational sphere focused on the integration of immigrant students and the intercultural education. The purpose of this study is to investigate the elements of educational attention to immigrant students defined in hosting policies for this group pertaining to educational institutions and national/international reference authors. To do this and based on a theoretical framework, the following phases in the development of research are addressed in the research: pre-analysis of documents, c…

Bayesian joint modeling for assessing the progression of chronic kidney disease in children.

2016

Joint models are rich and flexible models for analyzing longitudinal data with nonignorable missing data mechanisms. This article proposes a Bayesian random-effects joint model to assess the evolution of a longitudinal process in terms of a linear mixed-effects model that accounts for heterogeneity between the subjects, serial correlation, and measurement error. Dropout is modeled in terms of a survival model with competing risks and left truncation. The model is applied to data coming from ReVaPIR, a project involving children with chronic kidney disease whose evolution is mainly assessed through longitudinal measurements of glomerular filtration rate.

Programa de deshabituación. ¿Cuáles son los factores que llevan al dropout?

2004

La toxicodependencia, es considerada como uno de los grandes problemas de la socie¬dad actual.El internamiento de los toxicodependientes, en unidades de tratamiento de deshabi¬tuación, es uno de los modelos de intervención implantados en Portugal, como una de las formas de dar respuesta a esta problemática.Aunque la adhesión al programa de deshabituación sea significativa, cabe destacar que el cumplimiento del mismo, no siempre se verifica.Es este contexto, desenvolvemos el trabajo con el objetivo de conocer eventuales factores asociados al «dropout», es decir, salida del programa sin ser por alta clínica.Siendo un trabajo desenvuelto en el ámbito académico, fue condicionado por el tiempo d…

Predictors of early dropout in treatment for gambling disorder: The role of personality disorders and clinical syndromes

2017

Several treatment options for gambling disorder (GD) have been tested in recent years; however dropout levels still remain high. This study aims to evaluate whether the presence of psychiatric comorbidities predicts treatment outcome according to Millon's evolutionary theory, following a six-month therapy for GD. The role of severity, duration of the disorder, typology of gambling (mainly online or offline) and pharmacological treatment were also analysed. The recruitment included 194 pathological gamblers (PGs) to be compared with 78 healthy controls (HCs). Psychological assessment included the South Oaks Gambling Screen and the Millon Clinical Multiaxial Inventory-III. The "treatment fail…