UNLABELLED The General Health Questionnaire (GHQ) was designed by Goldberg in the 1970's as a screening instrument to provide information on the mental wellbeing. Although it is widely used as a unidimensional instrument, factor analyses tend to suggest that it contains more than one dimension. AIM The purpose of this paper is to review the factor-analytic research that has been carried out w...

In this paper, we develop a parameter estimation method for factorially parametrized models such as Factorial Gaussian Mixture Model and Factorial Hidden Markov Model. Our contributions are two-fold. First, we show that the emission matrix of the standard Factorial Model is unidentifiable even if the true assignment matrix is known. Secondly, we address the issue of identifiability by making a ...

the pain anxiety symptoms scale (pass-20) has been developed as a general measure of anxiety and fear in individuals with various chronic pain disorders by mccracken and dhingra (2002). short-form scale of pass-20 has been extracted from 40 items of dass which published in 1992. this study aimed (1) to examine the factor structure of a persian language version of the pass-20 (irpass-20); (2) to...

Background: Pain is a multidimensional experience. Locus of control is an important factor related to chronic pain experience and treatment. There is a gap in the literature when discussing issues related to pain evaluation in elderly. Objectives: To analyze the factorial structure, intra and inter-rater reliability of the Brazilian version of the Pain Locus of Control Scale Form C for elderly ...

Background: The attitude towards lactation is one of the best predictors of breastfeeding. Iowa Infant Feeding Attitudes Scale (IIFAS) is used to measure the attitude toward lactation. IIFAS is a valid and reliable tool but factorial structure of this tool was reported various in different studies. The aim of this study is to assess factorial structure of IIFAS. Materials and Methods: An extens...