Search results for "Psychometric"

2021

Students with poor reading skills and reading difficulties (RDs) are at elevated risk for bullying involvement in elementary school, but it is not known whether they are at risk also later in adolescence. This study investigated the longitudinal interplay between reading skills (fluency and comprehension), victimization, and bullying across the transition from elementary to middle school, controlling for externalizing and internalizing problems. The sample consists of 1,824 students (47.3% girls, T1 mean age was 12 years 9 months) from 150 Grade 6 classrooms, whose reading fluency and comprehension, self-reported victimization and bullying, and self-reported externalizing and internalizing …

International validation of the revised European Organisation for Research and treatment of cancer head and neck cancer module, the EORTC QLQ-HN43

2019

Background: We validated the new European Organisation for Research and Treatment of Cancer Quality of Life Head and Neck Module (EORTC QLQ-HN43). Methods: We enrolled 812 patients with head and neck cancer from 18 countries. Group 1 completed the questionnaire before therapy, and 3 and 6 months later. In group 2 (survivors), we determined test–retest reliability using intraclass correlation coefficients (ICC). Internal consistency was assessed using Cronbach's Alpha, the scale structure with confirmatory factor analysis, and discriminant validity with known-group comparisons. Results: Cronbach's alpha was >0.70 in 10 of the 12 multi-item scales. All standardized factor loadings exceeded…

Model and quality assessment of single image dehazing

2016

This thesis is mainly related to color imaging science, involving many disciplines, such as color image enhancement, image formation, color reproduction, optical physics, radiometry, colorimetry, image quality and psychophysics.Dehazing aims at recovering the image information degraded by light scattering, e.g. bad weather. This process is an ill-posed and a challenging problem. Although a variety of approaches have been proposed, there is still room for further improvement and standardization. In this work, we investigate the limitations of haze model in terms of accuracy of color image recovery. We address also the link between the visibility deterioration and the spectral content of the …

2019

Objective A short questionnaire which can be applied for assessing patient satisfaction in different contexts and different countries is to be developed. Methods Six items addressing tangibles, reliability, responsiveness, assurance, empathy, and communication were analysed. The first five items stem from SERVQUAL (SERVice QUALity), the last stems from the discussion about SERVQUAL. The analyses were performed with data from 12 surveys conducted in six different countries (England, Finland, Germany, Greece, the Netherlands, Spain) covering two different conditions (type 2 diabetes, stroke). Sample sizes for included participants are 247 in England, 160 in Finland, 231 in Germany, 152 in Gre…

Positive/negative symptomatology and experimental measures of attention in schizophrenic patients.

1993

In a search for an external validation of the negative syndrome construct and the attentional impairment item on Andreasen's scale, 49 unmedicated schizophrenic patients were administered the Span of Apprehension Test and a Continuous Performance Test with two levels of difficulty. This schizophrenic sample performed significantly more poorly on the attentional tests than a comparable group of 27 healthy control subjects. Depending on the difficulty of the test we found a number of significant correlations between the SANS composite score and the pertaining attentional impairment item on the one hand and experimental indices of attentional functioning on the other hand, which might corrobor…

Identification of minor affective disorders and implications for psychopharmacotherapy.

1991

Five hundred general practice patients with functional complaints were studied with the Polydiagnostic Interview (PODI) to see whether DSM-IIIR criteria were able to specify affective disorders satisfactorily. Almost one third of the patients received the diagnosis of depression not otherwise specified (NOS). When Research Diagnostic Criteria were applied to these patients more than 70% received specific diagnoses. A modification of DSM-IIIR algorithms enabled us to further specify diagnoses in subjects with depression NOS. On the 17-item Hamilton Depression Scale many of these patients reached scores of 13 or more which is severe enough to justify a therapy trial with antidepressants.

Expression of clec9a in the oral cancer microenvironment. A preliminary immunohistochemical pilot study

2021

Background The search for treatments to improve cancer survival has led to the emergence of immunotherapy and the study of the tumour microenvironment existing in neoplasms. This preliminary study aims to understand the clinical and pathological relationship of clec9a expression in oral cancer and to explore survival models for future studies. Material and methods: Immunohistochemical study that included 26 patients with a diagnosis of oral squamous cell carcinoma (OSCC) in mobile tongue and floor of the mouth. Clinical and histopathological variables were recorded, and the biomarkers clec9a for dendritic cells and CD8 and CD4 for lymphocytes were used. Results Clec9a was expressed in 58% o…

Psychometric properties of the interaction on supervised classes scale (ISCS)

2016

Objeto: La presente investigación se centra en la construcción y validación de una escala diseñada para evaluar la calidad de la clases dirigidas: Escala de Interacción en las Clases Dirigidas (EICD). Diseño/metodología/enfoque: Se trata de un estudio descriptivo correlacional. Para la elaboración de la escala se recurrió a tres fases diferenciadas en las que diferentes expertos evaluaron la adecuación de los ítems, finalmente se estudiaron las propiedades psicométricas de la versión final en una muestra de 314 socios (69.1% mujeres) con edades entre los 18 y los 77 con una media de 39.33 años (DT=12.25). Aportaciones y resultados: La escala presenta una validez y fiabilidad adecuadas, sien…

Multi-wave, multi-variable models of job insecurity: applying different scales in studying the stability of job insecurity

2001

The study had two specific targets: first, to examine the stability of job insecurity by utilizing three-year longitudinal data (n = 109) collected in Finland and, second, to clarify psychometric properties of four job insecurity scales, i.e., the global scale, the importance scale, the probability scale and the powerlessness scale. The study was carried out by means of questionnaires, which were answered on three occasions. Analyses were conducted using multi-wave, multi-variable models which were estimated and tested via the LISREL program. Generally, the results showed that job insecurity remained relatively stable during the follow-up period, although there were some variations in the s…

L’attenzione per il benessere organizzativo nella Pubblica Amministrazione italiana. Analisi critica del questionario CIVIT/ANAC

2018

L'articolo propone una riflessione sugli studi inerenti al benessere organizzativo nel nostro Paese, e un'analisi secondaria sul questionario per la valutazione del Benessere organizzativo nella pubblica amministrazione italiana CIVIT/ANAC realizzata tra il personale tecnico amministrativo di alcuni atenei italiani, con tre obiettivi: confrontare le dimensioni del benessere incluse nel questionario con i fattori considerati nei più noti modelli che in letteratura hanno definito il costrutto del benessere al lavoro; controllare attendibilità e validità dello strumento; identificare la struttura semantica soggiacente alle risposte, prescindendo dall'impostazione precostituita del questionario.