A family of chance-corrected association coefficients for metric scales

A chance-corrected version of the family of association coefficients for metric scales proposed by Zegers and ten Berge is presented. It is shown that a matrix with chance-corrected coefficients between a number of variables is Gramian. The members of the chance-corrected family are shown to be partially ordered. The author is obliged to Jos ten Berge for helpful comments.     

Early Retirement of Civil Servants in the Netherlands1

The Netherlands is aging, the labor force participation of older men and women is low, particularly seen in an international perspective. At the same time the massive departure of elderly from the labor force seems to be becoming more and more difficult to afford. In addition, the question arises whether sufficient financial support will be available in the future for maintaining the current level of old age facilities. Despite the popularity of early retirement schemes in the Netherlands, little attention has been paid to the factors underlying this phenomenon. This article takes an initial step towards a multivariate modelling of the older employees' decision to retire early. Compared with other countries, the situation in the Netherlands is special to the extent that there is relatively little variation in the situational context of rules and regulations on voluntary early retirement. This does not imply that the opportunity structure is the same for every older employee: There is variation in the household context, state of health, the organizational context, and the normative context. Furthermore, within a given opportunity structure, there is variation in the older employee's disposition towards early retirement. Using a method of decreasing abstraction, data have been analyzed from a survey conducted among civil servants eligible for early retirement. In the case of the Netherlands, we conclude that mainly the organizational context, the normative context, and the employee's disposition towards retirement play a major role in explaining the early retirement decision. In comparison to former studies in the U.S., we find surprisingly no effect of the financial-economic variables on the decision to retire.     

Advancing an Understanding of the Anxiety Control Questionnaire for Children (ACQ-C) in Clinically Anxious and Non-Anxious Youth: Psychometric Properties,Incremental Prediction and Developmental Differences

A lack of perceived control over anxiety-related situations is theorized to be characteristic of anxiety disorders in children and adolescents. In the current study we tested several theoretical predictions and developmental variation with the Dutch translation of the Anxiety Control Questionnaire for Children (ACQ-C). The theoretical factor structure of anxiety control was tested using Confirmatory Factor Analysis (CFA) in 548 non-referred children (8–18 years old, M?=?12.5 years; 50.7 % girls). The incremental predictive validity of perceived control for anxiety status was assessed using logistic regression in 141 clinically anxious children (age M?=?12.6 years; 56.7 % girls) and 298 non-referred non-anxious children (age M?=?12.6 years; 52.7 % girls). CFA showed that both a one-factor model and two-factor model (perceived control over internal reactions and external events) fit well. The one-factor model proved invariant across age and gender. Internal consistency was excellent (Cronbach’s α?=?.93). Two-month test-retest reliability was adequate. The ACQ-C was able to incrementally predict diagnostic status, even after controlling for age, gender and self-reported anxiety symptoms. Finally, both younger children and girls reported less perceived control, independent of anxiety level. Findings advance the understanding of the psychometric properties of the ACQ-C, the role of control in childhood anxiety and point to the potential utility of the ACQ-C in both clinical and community samples. The Dutch translation of the ACQ-C demonstrated sound psychometric properties.     

Judgments of Aggressive, Withdrawn and Prosocial Behavior: Perceived Control, Anger, Pity and Sympathy in Young Dutch Children

In two studies, we examined first- and second-grade children's judgments of aggressive, withdrawn, and prosocial behavior by means of fictional scenarios. In study I, we compared judgments of fictional aggressive children with those of fictional withdrawn children. Aggressive children were perceived as more responsible for their behavior and elicited more feelings of anger, while withdrawn children were more likely to be chosen as a friend and elicited more feelings of pity. In study II, we compared judgments of fictional aggressive, withdrawn, and prosocial children with each other. Again aggressive children elicited the strongest feelings of anger, while withdrawn children elicited the strongest feelings of pity. These withdrawn children were perceived as more similar to the prosocial children. In an attempt to test the ecological validity of our sympathy measure, we asked children to rate their peers on a three-point liking scale and checked the scores of those judged to be aggressive by their teachers. These aggressive children were found to receive the lowest liking scores. The results are discussed.     

Who Is at Risk for Psychological Distress in Genetic Testing Programs for Hereditary Cancer Disorders?

Presymptomatic identification of disease gene carriers is becoming an increasingly common part of the clinical management of hereditary cancer disorders. With an expected increase in the number of requests for DNA testing and the limited resources for counseling, the amount of time genetic counselors are able to spend with test candidates will decrease. It is therefore important for counselors to identify persons at risk for psychological distress. Based on a review of experiences with Huntington disease and cancer patients, we describe factors likely to evoke distress in genetic cancer candidates. We also discuss the sometimes widely different ways that test candidates and their partners respond to genetic testing. By exploring risk factors for distress in relevant domains of the research, we can offer counselors guidelines for determining who may need extra counseling.     

Anxiety and post-traumatic stress symptoms following wisdom tooth removal

The purpose of the present study was to determine the psychological impact of wisdom teeth removal and to identify the psychological risk factors for the development of dental anxiety and post-traumatic stress symptoms. Participants were 34 consecutive elective patients referred for surgical removal of a wisdom tooth under local anesthesia. Frequency of previous distressing dental events and general traumatic life events were assessed at baseline (t1), and emotional distress (pain, state anxiety and disturbance) immediately after treatment (t2). Post-traumatic stress responses were determined three days after treatment (t3), and at four weeks follow-up (t4), while severity of dental trait anxiety was assessed at t1 and at t4. Two patients (8%) met screening criteria for Post-Traumatic Stress Disorder (PTSD) at t4. Multivariate analysis revealed that previous exposure to distressing dental events and pre-operative anxiety level predicted anxiety level at t4, accounting for 71% of the variance. Severity of pain during treatment was a significant predictor variable of PTSD symptom severity at t4 (25% explained variance). The findings underline the importance of pain-free treatments and awareness of patients' individual predisposition to anxiety or trauma-related symptoms to reduce the risk of iatrogenic psychological harm.     

A series of lower bounds to the reliability of a test

Two well-known lower bounds to the reliability in classical test theory, Guttman's ₂ and Cronbach's coefficient alpha, are shown to be terms of an infinite series of lower bounds. All terms of this series are equal to the reliability if and only if the test is composed of items which are essentially tau-equivalent. Some practical examples, comparing the first 7 terms of the series, are offered. It appears that the second term (₂) is generally worth-while computing as an improvement of the first term (alpha) whereas going beyond the second term is not worth the computational effort. Possibly an exception should be made for very short tests having widely spread absolute values of covariances between items. The relationship of the series and previous work on lower bound estimates for the reliability is briefly discussed.The authors are obliged to Henk Camstra for providing a computer program that was used in this study.