Worry is a common phenomenon with people who anticipate and want to be prepared for future events. Pathological worry, however, is not limited to anticipating potentially dangerous events, but it is applied to small daily events, too. This kind of worry is perceived as uncontrollable, and it is strongly associated with catastrophism. The Penn State Worry Questionnaire (PSWQ) was developed to assess pathological worry. Despite its excellent psychometric characteristics, its internal structure is still controversial. The combination of regular and reversed items and certain methodological considerations may account for the discrepancies in the results of previous investigations. With the aim to analyze worry in Portugal and the psychometric properties of the PSWQ, for the present study, methodological options were considered in order to minimize previous problems. A sample of 558 Portuguese community participants took part in this study. Exploratory and Confirmatory Factor Analysis were performed with two independent random subsamples. The results showed the unidimensionality of PSWQ and the psychometric adequacy of both the full, 16-item version and a reduced, 11-item version (without reversed scored items). Normative data are presented, the suitability of both versions is discussed, and the authors conclude by encouraging the use of the reduced, 11-item version of the PSWQ in applied settings.

Recent research has found low levels of general self-efficacy (GSE: beliefs about the ability to appropriately handle a wide range of stressors) and high levels of anxiety sensitivity (AS: fear of the negative consequences of experiencing anxiety) to be relevant predictors of pathological worry. This study examined the role of psychological inflexibility (PI: the dominance of private experiences over chosen values and contingencies in guiding action), the central component of the acceptance and commitment therapy model of psychopathology, in the effect of GSE and AS on worry. A total of 132 nonclinical participants completed questionnaires assessing the constructs of interest. Partial correlations and regression analyses showed that both GSE and AS were independent predictors of pathological worry after controlling for each other. However, mediation analyses revealed that psychological inflexibility completely mediated the independent effects of both GSE and AS on pathological worry. Theoretical and treatment implications of the results are discussed.

Mindfulness training has been proposed as a potentially important new approach for the treatment of generalized anxiety disorder (GAD). However, to date only a few studies have investigated mindfulness training for GAD. The aim of this study was to further investigate symptom change and recovery in pathological worry after mindfulness-based cognitive therapy (MBCT) using an uncontrolled pre-post design. Twenty-three adults with a primary diagnosis of GAD participated in the study. The MBCT program involved 9 weekly 2-hour group sessions, a post-treatment assessment session, and 6-week and 3-month follow-up sessions. Intent-to-treat analysis revealed significant improvements in pathological worry, stress, quality of life, and a number of other symptoms at post-treatment, which were maintained at follow-up. Attrition was also low, and MBCT was perceived as a credible and acceptable intervention. However, when applying standardized recovery criteria to pathological worry scores, the rate of recovery at post-treatment was very small, although improved at follow-up. Overall, the findings suggest MBCT is definitely worthy of further investigation as a treatment option for GAD, but falls well short of outcomes achieved by past research. Possible reasons for the poor rate of recovery, implications, and limitations are briefly outlined.