Over the past few decades, research has suggested that cognitive variables play a key role in sleep disorders, particularly, in insomnia. The SLOC (Sleep Locus of Control Scale) evaluates the sleep locus of control, which is associated with the degree to which an individual attributes her/his experiences of sleep to chance or internal causes. The aim of this study was to develop the first translation and adapta...
Background: The Eating Attitudes Test (EAT) is the most widely used instrument for evaluating eating disorders in adults and adolescents in a variety of cultures and samples. Objective: The aim of this study was to analyse the psychometric properties of the Portuguese version of the Children’s Eating Attitudes Test (ChEAT). Method: Nine hundred and fifty-six Portuguese secondary students (565 girls and 391 boys...
Objective: To examine the factor structure of the Rutter Teacher Questionnaire in Portuguese primary school children. Method: The Rutter Teacher Questionnaire, a 26-item scale covering a variety of behavioral problems, was completed by teachers of 877 children, aged 6 to 11 years. Data were subjected to factor analysis using the principal components solution with varimax rotation. Results: The factorial analysi...