ObjectiveThe Fear Avoidance Components Scale (FACS) is a new patient-reported outcome (PRO) questionnaire designed to comprehensively evaluate fear avoidance (FA) beliefs and attitudes in persons with painful medical conditions. The original English version has demonstrated acceptable psychometric properties, including concurrent and predictive validity. Two factors have been identified: 1. general fear avoidance; and 2. types of activities that are avoided.MethodsThe FACS was first translated into Serbian, and then psychometrically validated. A cohort of 322 chronic musculoskeletal pain subjects completed the FACS-Serb and additional FA-related patient-reported outcome (PRO) measures. Their FACS-Serb scores were then compared to a cohort of 68 acute pain subjects.ResultsTest-retest reliability (ICC2,1 = 0.928) and internal consistency for both Factors (Cronbach α 0.904 and 0,880 respectively) were very good. An acceptable fit was found with a confirmatory factor analysis of the 2-factor model found with the original English version of the FACS. Strong associations were found among FACS-Serb scores and other PRO measures of pain catastrophizing, depressive/anxiety symptoms, perceived disability, and pain intensity (p<0.001 for all analyses). FACS-Serb total scores, separate Factor scores, and subjective pain ratings were significantly higher in the chronic vs. acute pain cohorts (p<0.001 for all analyses).ConclusionsThe FACS-Serb demonstrated strong psychometric properties, including strong reliability and internal consistency, criterion validity (through associations with other FA-related PRO measures), and discriminant validity (through comparisons with a separate acute pain cohort). The FACS-Serb appears to be a potentially useful pain-related assessment tool.
Objectives The goal of the present study was to explore additional evidence of validity of the Serbian version of the Central Sensitization Inventory (CSI), a patient‐reported outcome measure of symptoms that have been found to be associated with central sensitization (CS). The CSI has been found to be psychometrically sound, and has demonstrated evidence of convergent and discriminant validity in numerous published studies and in multiple languages. Methods CSI data were collected from 399 patients with chronic pain who had various diagnoses and from 146 pain‐free controls. In addition, the patient sample completed a battery of validated patient‐reported outcome measures of sleep problems, cognitive problems, pain catastrophizing, pain‐related fear‐avoidance, decreased quality of life, and decreased perception of social support. Six patient subgroups were formed, with presumably different levels of CS (including those with fibromyalgia, multiple pain sites, and localized pain sites). Results Significant differences were found in total CSI scores among the controls and patient subgroups. Those with fibromyalgia and multiple pathologies scored highest and the control subjects scored lowest. Other patient‐reported CS‐related symptom dimensions were significantly correlated with total CSI scores. When the patients were divided into CSI severity subgroups (from subclinical to extreme), the severity of these other symptom dimensions increased with the severity of CSI scores. Conclusions The current study successfully demonstrated additional evidence of the convergent and discriminant validity of the Serbian version of the CSI.
The first twin study in Serbia began in 2011 as a part of the research project, ‘Psychological Foundations of Mental Health: Hereditary and Environmental Factors’. At the same time, the research team from the Faculty of Philosophy and Faculty of Medicine in Novi Sad established the first Serbian twin registry. The registry is intended primarily for the purpose of the research in behavioral genetics, as well as potential future studies in human genetics. It includes information on 1658 volunteers, including twin-pairs, their parent and siblings. The behavioral genetic study of adult twins has been focused on the hereditary and environmental sources of variance of different psychological characteristics, such as personality traits, cognitive abilities, executive functions and aggression, as well as some anthropometric measures and aspects of mental and physical health. Certain molecular genetic analyses have also been performed. The research team is currently starting the longitudinal twin study of children, which will be focused on different indicators of emotional, cognitive and physical development.
The Childhood Executive Functioning Inventory (CHEXI) and the Adult Executive Functioning Inventory (ADEXI) are reliable and valid rating instruments for assessing working memory and inhibitory control. However, a teenage version of this instrument has not been available, and the aim of the present study was therefore to investigate the psychometric properties of the Teenage Executive Functioning Inventory (TEXI). After interviewing both researchers/ clinicians and adolescents themselves, a questionnaire with 20 items was created. Data from adolescents age 13-19 years (n = 302) and their parents were thereafter collected. Factor analysis showed that the TEXI has two clear factors: working memory and inhibition. Further, the TEXI was shown to have high reliability in terms of internal consistency (≥ .85), split-half reliability (≥ .81) and inter-rater reliability between self-ratings and parent ratings (.82). In sum, the TEXI is a reliable questionnaire for measuring working memory and inhibition in adolescents. The two versions of the TEXI are presented in the appendices of this paper and they will be freely available on the Internet.
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