A sense of competence or self-efficacy is associated with many positive outcomes, particularly in the area of health behavior. A measure of a sense of competence in the domain of health behavior has not been developed. Most measures are either general measures of a general sense of self-efficacy or are very specific to a particular health behavior. The Perceived Health Competence Scale (PHCS), a domain-specific measure of the degree to which an individual feels capable of effectively managing his or her health outcomes, was developed to provide a measure of perceived competence at an intermediate level of specificity. Five studies using three different types of samples (students, adults and persons with a chronic illness) provide evidence for the reliability and validity of the PHCS. The eight items of the PHCS combine both outcome and behavioral expectancies. Results from the five studies indicate that the scale has good internal consistency and test-retest reliability. The construct validity of the scale is demonstrated through the support obtained for substantive hypotheses regarding the correlates of perceived health competence, such as health behavior intentions, general sense of competence and health locus of control.
We report results from the first data collection on an ongoing longitudinal study aimed at describing the natural history of adaptation to childhood epilepsy and asthma in children and their families. We studied 136 children with epilepsy and 134 children with asthma aged 8-12 years. Data were collected from the children, their mothers, and their school teachers through interviews, school records, and questionnaires. The two samples were compared on four domains of quality of life: physical, psychological, social, and school. Data were analyzed by a 2 x 2 between-subjects multivariate analysis of covariance with type of illness (epilepsy or asthma) as the independent variable and length of time since onset of illness as a covariate. A significant main effect was noted for illness [multivariate F (15, 236) = 11.36, p < 0.001]. Our major finding was that children with epilepsy had a relatively more compromised quality of life in the psychological, social, and school domains. In contrast, children with asthma had a more compromised quality of life in the physical domain. Our findings suggest that attention simply to seizure control in the clinical setting will not address the full range of quality-of-life problems of children with epilepsy.
Introduction Attribution theory posits that helping behaviour is determined in part by the potential helper's attributions and emotions regarding the behaviour that requires help. Specifically, helping is considered to be more likely if stability is perceived as low, generating optimism for change, and if controllability is perceived as low, engendering high levels of sympathy and low levels of anger. Method We conducted a systematic literature search to identify studies that have tested these predictions in relation to carers' propensity to help people with intellectual disabilities who display challenging behaviour. ResultsThe literature is inconsistent and provides at best partial support for the theory. This situation differs from that seen in the general population, where the predictions of attribution theory are broadly supported. Discussion We consider three potential explanations for this discrepancy: the reliability of the largely vignettebased methodology, the fact that most studies fail to define 'helping' explicitly and the possibility that attribution theory might apply only to low-frequency behaviours.
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