Search results for "Factorial"
showing 10 items of 253 documents
Nitroarene hydrogenation catalysts based on Pd nanoparticles glued with PDA on inorganic supports: Multivariate Curve Resolution as an useful tool to…
2021
[EN] Two green catalysts based on Pd(0) nanoparticles (Pd NPs) anchored through PDA on porous silica and magnetite have been synthesized using a generalized simple and reproducible "two-step" methodology. Both catalysts were tested for a model reaction, the hydrogenation of 4-nitrophenol using NaBH4 as the hydrogenating agent, and especially good activity has been achieved in the case of the catalysts containing magnetite as inorganic core (Pd NPs-PDA@Fe3O4). We analyzed the effect associated with the catalyst separation method (centrifugation or magnetically) that affect to the distribution and aggregation degree of the Pd NPs. In addition, we also correlate the final catalyst morphology w…
Validation of a Modified Version of the Psychological Capital Questionnaire (PCQ12) in Spain
2018
Background : Previous studies have found some limitations and inconsistencies in the functioning of the short Psychological Capital Questionnaire (PCQ12), suggesting the need to improve it. The objective of the current study is to validate a modified version of the PCQ12 in Spain. Method : The sample consists of 792 employees from 42 Spanish organizations. A cross-validation was carried out to test the factorial validity of the modified scale. Reliability and convergent, discriminant, and criterion validity were also tested. Results : The modified PCQ12 showed good psychometric qualities. A four-factor structure showed a better fit to the data than the original second-order structure. Conc…
The UNIPSICO questionnaire: psychometric properties of the scales measuring psychosocial demands
2016
espanolObjetivo. Analizar las propiedades psicometricas de las escalas de la Bateria UNIPSICO que permiten evaluar los factores psicosociales de recursos del contexto de trabajo. Metodos. La muestra estuvo formada por 2564 participantes, 1391 trabajadores de centros de atencion a personas con discapacidad psiquica, y 1173 docentes de secundaria de la Comunidad Valenciana. La recogida de datos se realizo mediante las escalas de la Bateria UNIPSICO que evaluan factores psicosociales de recursos del lugar de trabajo (26 items) que se agrupan en 4 escalas: Disponibilidad de recursos, Apoyo social en el trabajo, Retroinformacion y Autonomia. Se realizaron analisis de items, validez de constructo…
The Italian version of the Depressive Experiences Questionnaire: psychometric properties and validation in students, community, and clinical groups
2017
The current study evaluated the psychometric properties of the Italian validation of the Depressive Experiences Questionnaire (DEQ), conceived as a measure of self-criticism and dependency, i.e. two personality factors acting, according to Blatt (2004), as risk factors for depression in particular and psychopathology in general. A series of standardized measures [Beck Depression Inventory-II (BDI-II), DEQ, Symptom Checklist-90-R (SCL-90-R), Millon Clinical Multiaxial Inventory, 3rd edition (MCMI-III)] was administered to three samples (i.e., students, community and clinical). Factorial validity was evaluated along with convergent and predictive validity. In order to evaluate the reliability…
Physicochemical properties of novel non-meat sausages containing natural colorants and preservatives
2018
In this study, novel non-meat sausage formulations (egg white, carrageenan, and modified cornstarch) was developed and evaluated for their sensory quality. Based on a full factorial design, optimal levels of ingredients and the effect of the addition of natural coloring agents such as lycopene, paprika oleoresin, and red yeast rice powder were investigated. The formulations were assessed based on models consisting of sensory attributes including cutting ability, flavor, texture, odor, and overall acceptability. According to results of overall acceptability, the optimal levels of carrageenan, modified corn starch, and egg white for the formulation found to be 0.5, 3, and 3% (w/w), respective…
Validación psicométrica de la batería UNIPSICO en valenciano/catalán: análisis de las escalas que evalúan las variables psicosociales de demanda
2022
Objetivo: Analizar las propiedades psicométricas de las escalas de demandas de la batería UNIPSICO del contexto de trabajo en valenciano/catalán.
 Método: La muestra la constituyen 2114 trabajadores de centros públicos de la Generalitat Valenciana, de la provincia de Valencia. La recogida de datos se realizó mediante las escalas de la batería UNIPSICO que evalúan factores psicosociales de demandas en el trabajo (33 ítems), que se agrupan en 6 escalas: Conflicto de rol (5 ítems), ambigüedad de rol (5 ítems), carga de trabajo (6 ítems), conflictos interpersonales (6 ítems), inequidad en los intercambios sociales (5 ítems), y conflicto trabajo-familia/familia-trabajo (6 ítems). Se realizó…
Adaptación al español del instrumento sobre cultura organizacional de Denison
2010
Este obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial 4.0 Internacional.
On the genetics of psoriasis
1973
To elucidate the mode of inheritance in psoriasis, Falconer's model for estimating heritability which is under the assumption of multifactorial inheritance, was applied to the data of Hellgren (1967) from Sweden. The heritability estimates were based on both manifest and potential psoriasis since a clear separation of these two categories was impossible. These estimates were 64% for parents, 60% for siblings and 52% for all first degree relatives which included the children of psoriatic cases. For second degree relatives it was 48%. None of these differences are statistically significant. The results are discussed.
Development and psychometric properties of a self‐report instrument for the assessment of sexual behaviour and concerns of people with mild intellect…
2021
Background: This paper presents a description of the development and psychometric properties of a self-report instrument for the assessment of sexual behaviour and concerns of people with mild intellectual disabilities (SEBECOMID-S). Methods and procedures: The study included 281 people with mild intellectual disabilities. The psychometric properties were examined through exploratory factorial analysis, descriptive statistics, and reliability indices. Results: The exploratory factor analyses offered a structure with three factors: concern about the appropriateness of their sexual behaviour, sexual practices performed, and safe sex practices. The model presents an excellent fit (χ2 /df = 1.1…
Factorial Validity and Reliability of the Curricular Goals in Physical Education Questionnaire
2015
This study aimed to examine the validity and reliability of an instrument designed to measure student perceptions of curricular goals in physical education, the Curricular Goals in Physical Education Questionnaire. Participants were 879 Finnish students from grades 7 to 9 (412 girls, 467 boys; mean age 13.81). An exploratory factor analysis was performed on Sample 1 (n = 287), revealing a four-factor solution and suggesting that factor structure be cross-validated with confirmatory factor analysis in Sample 2 (n = 592). Confirmatory factor analysis demonstrated an acceptable fit and supported the four-factor model. Tests for gender invariance supported configural, metric, and scalar invaria…