Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 15 de 15
Filtrar
Mais filtros











Intervalo de ano de publicação
1.
Behav Sci (Basel) ; 14(3)2024 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-38540456

RESUMO

This study investigates the relationship between body image, eating disorders, psychological characteristics, and mood and anxiety symptoms in Chilean youth, with nutritional status, particularly overweight and obesity. With a sample of 1001 participants from five regions of Chile, aged 15 to 23 years. The Eating Disorder Inventory 3 (EDI-3), the Multidimensional Body-Self Relations Questionnaire Appearance Scales (MBSRQ_AS), and the Symptom Inventory Derogatis Revised (SCL90-R) and a sociodemographic questionnaire were used to analyze these variables. A model including nine exogenous (independent) variables and ten endogenous variables, based on a literature review, was evaluated by path analysis. The results show a significant association between factors such as sex, family history of overweight, self-classification by weight, and body dissatisfaction with body mass index (BMI). Eating behaviors such as overeating, and lack of appetite were also found to be influenced by interpersonal sensitivity, overweight preoccupation, and drive for thinness. The study underscores the importance of promoting a positive body image and addressing overweight/obesity from a combined health psychology and public health perspective, highlighting the need for interventions that consider nutritional status, and in particular overweight and obesity, as a phenomenon with multifactorial causes and maintainers.

2.
Assessment ; : 10731911241236315, 2024 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-38468149

RESUMO

The adoption of open science practices (OSPs) is crucial for promoting transparency and robustness in research. We conducted a systematic review to assess the frequency and trends of OSPs in psychometric studies focusing on measures of suicidal thoughts and behavior. We analyzed publications from two international databases, examining the use of OSPs such as open access publication, preregistration, provision of open materials, and data sharing. Our findings indicate a lack of adherence to OSPs in psychometric studies of suicide. The majority of manuscripts were published under restricted access, and preregistrations were not utilized. The provision of open materials and data was rare, with limited access to instruments and analysis scripts. Open access versions (preprints/postprints) were scarce. The low adoption of OSPs in psychometric studies of suicide calls for urgent action. Embracing a culture of open science will enhance transparency, reproducibility, and the impact of research in suicide prevention efforts.

3.
Braz. J. Psychiatry (São Paulo, 1999, Impr.) ; 45(4): 327-333, Aug. 2023. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1513819

RESUMO

Objectives: To examine the association between psychiatric and non-psychiatric comorbidity and 28-day mortality among patients with psychiatric disorders and COVID-19. Methods: Multicenter observational retrospective cohort study of adult patients with psychiatric disorders hospitalized with laboratory-confirmed COVID-19 at 36 Greater Paris university hospitals (January 2020-May 2021) (n=3,768). First, we searched for different subgroups of patients according to their psychiatric and non-psychiatric comorbidities through cluster analysis. Next, we compared 28-day all-cause mortality rates across the identified clusters, while taking into account sex, age, and the number of medical conditions. Results: We found five clusters of patients with distinct psychiatric and non-psychiatric comorbidity patterns. Twenty-eight-day mortality in the cluster of patients with mood disorders was significantly lower than in other clusters. There were no significant differences in mortality across other clusters. Conclusion: All psychiatric and non-psychiatric conditions may be associated with increased mortality in patients with psychiatric disorders and COVID-19. The lower risk of death among patients with mood disorders might be in line with the potential beneficial effect of certain antidepressants in COVID-19, but requires further research. These findings may help identify at-risk patients with psychiatric disorders who should benefit from vaccine booster prioritization and other prevention measures.

4.
Braz J Psychiatry ; 2023 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-37290011

RESUMO

OBJECTIVE: To examine the association between psychiatric and non-psychiatric comorbidity and 28-day mortality among patients with psychiatric disorders and COVID-19. METHODS: We performed a multicenter observational retrospective cohort study of adult patients with psychiatric disorders hospitalized with laboratory-confirmed COVID-19 at 36 Greater Paris University hospitals (January 2020-May 2021) (N=3,768). First, we searched for different subgroups of patients according to their psychiatric and non-psychiatric comorbidities through cluster analysis. Next, we compared 28-day all-cause mortality rates across the identified clusters, while taking into account sex, age, and the number of medical conditions. RESULTS: We found 5 clusters of patients with distinct psychiatric and non-psychiatric comorbidity patterns. Twenty-eight-day mortality in the cluster of patients with mood disorders was significantly lower than in other clusters. There were no significant differences in mortality across other clusters. CONCLUSIONS: All psychiatric and non-psychiatric conditions may be associated with increased mortality in patients with psychiatric disorders and COVID-19. The lower risk of death among patients with mood disorders might be in line with the potential beneficial effect of certain antidepressants in COVID-19, but requires further research. These findings help identify at-risk patients with psychiatric disorders who should benefit from vaccine booster prioritization and other prevention measures.

5.
Suma psicol ; 30(1)jun. 2023.
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1536899

RESUMO

Introduction: Reading Comprehension skills are fundamental to the academic performance of university students. These abilities are not innate; therefore, systematic training is required before entering university. The main objective of this study was to evaluate the reading comprehension skills of Chilean University Students. Method: A sample of 579 students participated in the study, responding to four texts that comprise the Reading Comprehension Strategies for University Students (ELCU). An automated platform was used to apply and correct the test with immediate results and feedback. The tool allowed the use of a broad and representative sample of the various regions of Chile. The ELCU was developed using a cognitive diagnostic assessment (CDA) considering cognitive, metacognitive and linguistic strategies. The ana-lyses were performed using two different approaches: The Linear Logistic Test Model (LLTM) and the deterministic inputs, noisy "and" gate (DINA) model. Results: The rejection of the LLTM implies that the strategies do not differ in cognitive complexity (difficulty) while the adequate goodness of fit to the DINA model allows to characterise the students according to their reading abilities. Conclusion: The ELCU test provides reliable and valid information on the reading comprehension ability and metacognitive awareness of university students.


Introducción: Las habilidades de comprensión lectora son fundamentales para el rendimiento académico de los estudiantes universitarios. Estas habilidades no son innatas; por tanto, se requiere una formación sistemática antes de ingresar a la universidad. El objetivo principal de este artículo fue evaluar las habilidades de comprensión lectora de estudiantes universitarios chilenos. Método: En el estudio participó una muestra de 579 estudiantes que respondieron cuatro textos que componen las Estrategias de Comprensión Lectora para Estudiantes Universitarios (ELCU). Se utilizó una plataforma automatizada para aplicar y corregir la prueba con resultados y retroalimentación inmediatos. La herramienta permitió utilizar una muestra amplia y representativa de las distintas regiones de Chile. ELCU fue desarrollado mediante evaluación diagnóstica cognitiva (CDA) considerando estrategias cognitivas, metacognitivas y lingüísticas. Los análisis se realizaron mediante dos aproximaciones diferentes: The Linear Logistic Test Model (LLTM) y the Deterministic Inputs, Noisy "and" Gate (DINA) model. Resultados: El rechazo al modelo LLTM implica que las estrategias no difieren en complejidad cognitiva mientras que la adecuada bondad de ajuste al modelo DINA permiten caracterizar a los estudiantes según sus habilidades lectoras. Conclusión: La prueba ELCU permite obtener información confiable y válida sobre la capacidad de comprensión lectora y la conciencia metacognitiva de los estudiantes universitarios.

6.
Behav Sci (Basel) ; 13(3)2023 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-36975223

RESUMO

Suicide is a global public health problem. The goal of this study was to evaluate the psychometric properties of the measurement of suicide severity based on the Columbia suicide severity rating scale. We worked with a sample of 516 Argentinean adults, aged 18 to 75. The fit of a measurement model that differentiates between the various degrees of suicidal severity was verified. The specified model returns fit values above the suggested cut-off points, both for the occurrence and frequency indicators. The internal consistency indices from the composite reliability coefficient also show values above the cut-off points for both occurrence and frequency. Finally, evidence of construct validity was obtained from the relationship with external variables. The results are consistent with the theory, showing stronger effects of hopelessness on suicidal ideation compared to suicide attempts. Overall, evidence of construct validity for the measurement of suicidal severity is presented, a contribution that is essential in remedying the lack of studies on suicide in the region and promoting prevention strategies.

7.
Artigo em Inglês | MEDLINE | ID: mdl-35886613

RESUMO

Within the scope of the Theory of Demands and Labor Resources, the Healthy & Resilient Organizations (HERO) Model, and the Leader-Member Exchange (LMX) Theory, this research contrasts a mediation model in which evidence on the factors that affect work performance is integrated, thus establishing the direct and indirect relationships between LMX quality, communication satisfaction, employee work engagement, and self-rated work performance. A total of 488 workers participated in this research. Adequate goodness of fit was found in the model (χ2 = 3876.996, df = 3715, p = 0.031; χ2/df = 1.044; CFI = 0.999; TLI = 0.999; SRMR = 0.056; RMSEA = 0.010): the LMX-work performance relationship is mediated by communication satisfaction and work engagement, whereas the LMX-work engagement relationship is mediated by communication satisfaction. This has led to the conclusion that, as employees consider the relationship with their superiors to be of higher quality, the satisfaction they experience in terms of organizational communication increases, and as organizational communication satisfaction increases, the extent to which employees feel more vigorous, involved and concentrated, and absorbed by work also increases, which, in turn, leads them to perceive their work performance to be higher.


Assuntos
Engajamento no Trabalho , Desempenho Profissional , Comunicação , Humanos , Incidência , Relações Interpessoais , Liderança , Satisfação Pessoal
8.
PLoS One ; 17(7): e0271830, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35857805

RESUMO

The objective of this study is to evaluate the factorial structure of the Spanish version of the Individual Work Performance Questionnaire (Version 1.0) and to estimate the impact that acquiescence has on it as response bias. Exactly 500 workers from organizations from different industries, primarily located in Ecuador, participated in this study. The comparison of different models using Confirmatory Factor Analysis proved that when acquiescence is not controlled, evidence leads to the rejection of a one-dimensional-or essentially one-dimensional-structure (bifactor model), thus questioning the initial conceptualization of the construct. But when this response bias is controlled, both the one-dimensional model (χ2 = 429.608 [223], p < .001; CFI = .974; TLI = .982; RMSEA = .043; SRMR = .063) and the bifactor model (χ2 = 270.730 [205], p = .001; CFI = .992; TLI = .994; RMSEA = .026; SRMR = .047) show relevant improvement in terms of goodness of fit over the three-correlated-factors model (χ2 = 537.038 [132], p < .001; CFI = .950; TLI = .942; RMSEA = .079; SRMR = .070). However, the low reliability of the substantive factors of the bifactor model makes the one-dimensional model preferable in applied studies. Finally, the results show how mistakes could be made when concluding on the possible relationships between work performance and other relevant variables, in case acquiescence is not controlled.


Assuntos
Desempenho Profissional , Análise Fatorial , Humanos , Psicometria/métodos , Reprodutibilidade dos Testes , Inquéritos e Questionários
9.
Front Psychol ; 13: 806563, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35300164

RESUMO

The aim of this study was to analyze the psychometric properties of the Eating Disorder Inventory (EDI)-3 test to evaluate eating disorders in young Chilean population. Methods: The sample consisted of 1,091 Chilean adolescents and young people (i.e., 476 men and 615 women) between 15 and 28 years old, from the metropolitan region, and four regions from the coast and south-central zone of the country. The reliability and factorial structure of the instrument were analyzed, replicating the confirmatory factor analyses of Brookings et al. (2020), evaluating four additional models that included bifactor exploratory structural equation modeling (ESEM), bifactor, and two-bifactor. Results: A majority of the subscales presented alphas and omegas equal to or greater than 0.70, with the exception of asceticism (α = 0.543, ω = 0.552) and interpersonal alienation (α = 0.684, ω = 0.695) scales, which are consistent with the values of the Spanish and Mexican non-clinical samples. The best fit indices were obtained by the ESEM two-bifactor model, with twelve specific factors corresponding to the EDI-3 subscales and two general orthogonal factors (i.e., risk subscales and psychological subscales), consistently with the theoretical basis.

10.
J Pers Assess ; 104(3): 408-416, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34227922

RESUMO

ABTRACTThe construct validity in relation to the dimensionality or factor structure of the Beck Hopelessness Scale (BHS) has long been debated in psychometrics. Irrelevant variance due to item wording (method effects) can distort the factor structure, and recent studies have examined the method factor's role in the factor structure of the BHS. However, the models used to control the method effects have severe limitations, and new models are needed. One such model is the correlated trait-correlated method minus one (CT-C(M-1)), which is a powerful approach that gives the trait factor an unambiguous meaning and prevents the anomalous results associated with fully symmetrical bifactor modeling. The present work compares the fit and factor structure of the CT-C(M-1) model to bifactor models proposed in previous literature and evaluates the criterion validity of the CT-C(M-1) model and its discriminatory capacity by taking suicidal ideation as the criterion variable. This study used a large and heterogeneous open mode online sample of Argentinian people (N = 2,164). The results indicated that the CT-C(M-1) model with positive words as referenced items achieves the most adequate factor structure. The factorial scores derived from this model demonstrate good predictive and discriminating capabilities.


Assuntos
Ideação Suicida , Tomografia Computadorizada por Raios X , Análise Fatorial , Humanos , Psicometria , Reprodutibilidade dos Testes
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA