Search results for " statistical"
showing 10 items of 1649 documents
Factor structure of the Hospital Anxiety and Depression Scale in adolescent patients with chronic disease.
2018
The Hospital Anxiety and Depression Scale (HADS) is a screening instrument that assesses emotional symptoms in different populations and medical conditions. This study analyzes the psychometric properties and factor structure of the HADS in adolescents with chronic disease and the differences based on their medical condition.The HADS was administered to a sample of 302 adolescents with chronic disease. Exploratory factor analyses were done in a subsample of 100 adolescents, while confirmatory factor analyses were performed in the rest of participants (202) to examine the validity and reliability of the HADS (14 items); an analysis of variance for a single factor was also done to study diffe…
A Revised Short Form of the Extended Class Play Among Italian Early Adolescents
2019
Among the measures assessing peer reputation, the Extended Class Play (ECP) is now used extensively in North American settings. Little information is available in other cultural contexts. Furthermore, practical considerations suggest developing a shorter form of the ECP to be used in socio-educational environments. This study examined the ECP dimensions of peer assessment in Italy as well as developed a shorter form of the measure. We revised the ECP using factor analyses according to an explorative-confirmatory approach. The original 37-item ECP was shortened to a 22-item version and, subsequently, the properties of the revised measure were evaluated. We performed two studies comprising, r…
Cross-national validation of the social media disorder scale: findings from adolescents from 44 countries
2022
Background and aims: There is currently no cross-national validation of a scale that measures problematic social media use (SMU). The present study investigated and compared the psychometric properties of the social media disorder (SMD) scale among young adolescents from different countries. Design: Validation study. Setting and participants: Data came from 222 532 adolescents from 44 countries participating in the health behaviour in school-aged children (HBSC) survey (2017/2018). The HBSC survey was conducted in the European region and Canada. Participants were on average aged 13.54 years (standard deviation = 1.63) and 51.24% were girls. Measurement: Problematic SMU was measured using th…
Development and Validation of the ADAS Scale and Prediction of Attitudes Toward Affective-Sexual Diversity Among Spanish Secondary Students
2017
Violence against non-heterosexual adolescents in educational contexts remains a worrying reality, but no adequate attitudes toward affective-sexual diversity (AtASD) measure exists for Spanish adolescent students. We developed a 27-item scale including cognitive, affective, and behavioral aspects, which was completed by 696 secondary school students from the Madrid area. Factor analyses suggested a unidimensional model, Cronbach's alpha indicated excellent scale scores reliability, and item calibration under the item response theory framework showed that the scale is especially informative for homophobic attitudes. A hierarchical multiple regression analysis showed that variables traditiona…
Predicting physical activity intentions using a goal perspectives approach: A study of Finnish youth
2007
Utilising a goal perspectives framework, a study predicting physical activity intentions in 12 to 16-year-old Hungarian adolescents was conducted with two samples. Theoretical predictions established a model that was tested through path analysis. Beliefs thought to underpin goal orientations were hypothesised to predict ego orientation (general and gift beliefs) and task orientation (learning and incremental beliefs). Task orientation was hypothesised to predict intentions directly, while ego orientation was hypothesised to predict intentions indirectly through perceived competence. Results from the first sample (n=301) suggested that the model could be improved by adding paths between gene…
Hearing in Real-Life Environments (HERE) : Structure and Reliability of a Questionnaire on Perceived Hearing for Older Adults
2019
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Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: a systematic analysis for …
2015
Background Up-to-date evidence on levels and trends for age-sex-specific all-cause and cause-specific mortality is essential for the formation of global, regional, and national health policies. In the Global Burden of Disease Study 2013 (GBD 2013) we estimated yearly deaths for 188 countries between 1990, and 2013. We used the results to assess whether there is epidemiological convergence across countries. Methods We estimated age-sex-specific all-cause mortality using the GBD 2010 methods with some refinements to improve accuracy applied to an updated database of vital registration, survey, and census data. We generally estimated cause of death as in the GBD 2010. Key improvements included…
Adapting and validating the Rosenberg Self-Esteem Scale for elderly Spanish population.
2019
ABSTRACTObjectives:This study aims to adapt and validate the most common measure of self-esteem, the Rosenberg Self-Esteem Scale (RSES), in the elderly Spanish population based on the initial one-factor model proposed by the author of the scale.Design:The factorial validity of the scale was tested using confirmatory factor analysis.Setting:The study was carried out in the city of Valencia (Spain).Participants:A total of 231 elderly people with a mean age 72.68 (SD=8.55).Measurements:The participants completed the questionnaire RSES for the validation process, sociodemographic data and Mini-Mental State Examination.Results:Confirmatory factor analysis with a five-item structure for the one-f…
How does early developmental assessment predict academic and attentional-behavioural skills at group and individual levels?
2009
The main aim of the study was to explore the ability of a brief developmental assessment to predict teacher-rated learning and attentional and behavioural skills in the first grade of school at both the group and individual levels. A sample of 394 children (181 males, 213 females) aged 4 years were followed to the age of 6 years, and 283 of the children (145 males, 138 females; mean age 7 y 11 mo) were followed further to the first grade (age 7 y) at school. The children were administered a brief but comprehensive developmental assessment (Lene - a neurodevelopmental screening method) at their local child health-care centres at ages 4 and 6 years. In the first grade, teachers completed a de…
Resting state glucose utilization and the CERAD cognitive battery in patients with Alzheimer's disease
2004
The present study examined the cortical functional representation of neuropsychological domains in Alzheimer's disease (AD) using positron emission tomography (PET) and the neuropsychological assessment battery of the Consortium to Establish a Registry of Alzheimer's Disease (CERAD). Thirty patients with clinical probable AD and 10 elderly healthy controls underwent (18)FDG brain PET imaging during a resting state. Correlations between metabolic values and cognitive measures were determined using a region of interest analysis with NEUROSTAT (University of Michigan, USA) and a voxel-based analysis with SPM96 (Wellcome Department, London, UK). Specific correlations were seen between measures …