Essential elements of questionnaire design and development Aims. The aims of this paper were (1) to raise awareness of the issues in questionnaire development and subsequent psychometric evaluation, and (2) to provide strategies to enable nurse researchers to design and develop their own measure and evaluate the quality of existing nursing measures. Background. The number of questionnaires developed by nurses has increased in recent years. While the rigour applied to the questionnaire development process may be improving, we know that nurses are still not generally adept at the psychometric evaluation of new measures. This paper explores the process by which a reliable and valid questionnaire can be developed. Methods. We critically evaluate the theoretical and methodological issues associated with questionnaire design and development and present a series of heuristic decision-making strategies at each stage of such development. The range of available scales is presented and we discuss strategies to enable item generation and development. The importance of stating a priori the number of factors expected in a prototypic measure is emphasized. Issues of reliability and validity are explored using item analysis and exploratory factor analysis and illustrated using examples from recent nursing research literature. Conclusion. Questionnaire design and development must be supported by a logical, systematic and structured approach. To aid this process we present a framework that supports this and suggest strategies to demonstrate the reliability and validity of the new and developing measure. Relevance to clinical practice. In developing the evidence base of nursing practice using this method of data collection, it is vital that questionnaire design incorporates preplanned methods to establish reliability and validity. Failure to develop a questionnaire sufficiently may lead to difficulty interpreting results, and this may impact upon clinical or educational practice. This paper presents a critical evaluation of the questionnaire design and development process and demonstrates good practice at each stage of this process.
The objective of this study was to determine the distribution of and trends in obesity in adult West African populations. Between February and March 2007, a comprehensive literature search was conducted using four electronic databases. Journal hand searches, citations and bibliographic snowballing of relevant articles were also undertaken. To be included, studies had to be population-based, use well-defined criteria for measuring obesity, present data that allowed calculation of the prevalence of obesity and sample adult participants. Studies retrieved were critically appraised. Meta-analysis was performed using the DerSimonian-Laird random effect model. Twenty-eight studies were included. Thirteen studies were conducted in urban settings, 13 in mixed urban/rural and one in rural setting. Mean body mass index ranged from 20.1 to 27.0 kg(2). Prevalence of obesity in West Africa was estimated at 10.0% (95% CI, 6.0-15.0). Women were more likely to be obese than men, odds ratios 3.16 (95% CI, 2.51-3.98) and 4.79 (95% CI, 3.30-6.95) in urban and rural areas respectively. Urban residents were more likely to be obese than rural residents, odds ratio 2.70 (95% CI, 1.76-4.15). Time trend analyses indicated that prevalence of obesity in urban West Africa more than doubled (114%) over 15 years, accounted for almost entirely in women. Urban residents and women have particularly high risk of overweight/obesity and obesity is rising fast in women. Policymakers, politicians and health promotion experts must urgently help communities control the spread of obesity in West Africa.
Loneliness can be defined as perceived social isolation and appears to be a relatively common experience in adults. It carries a significant health risk and has been associated with heart disease, depression and poor recovery after coronary heart surgery. The mechanisms that link loneliness and morbidity are unclear but one of the mechanisms may be through poor health beliefs and behaviours. The aims of this cross-sectional survey of 1289 adults were to investigate differences in health behaviours (smoking, overweight, BMI, sedentary, attitudes towards physical activity) in lonely and non-lonely groups. Lonely individuals were more likely to be smokers and more likely to be overweight - obese. The lonely group had higher body mass index scores controlling for age, annual income, gender, employment and marital status. Logistic regression revealed no differences in sedentary lifestyles. Lonely individuals were significantly less likely to believe it was desirable for them to lose weight by walking for recreation, leisure or transportation. The findings provide support for an association between health behaviours, loneliness and excess morbidity reported in previous studies.
Levels of affective distress, sources of stress and coping strategies reported by first-year student nurses in Tayside, Scotland, were measured using the General Health Questionnaire (30-item version), the Beck & Srivastava Stress Inventory (BSSI) and a modified 'Ways of Coping Questionnaire'. Screening showed that, around the time of an initial series of hospital placements, 50.5% of students in cohort 1 (n = 109, week 40) and 67.9% of students in cohort 2 (n = 111, week 24) suffered significant affective distress. This exceeds levels reported in published studies of degree nursing students, fourth-year medical students, and the general female population. Distressed students reported the same sources of stress as the non-distressed students, but suffered them more intensely. Many BSSI items were seen as common sources of stress; however, the frequency with which an item was reported to be stressful was not related to whether scores on that item predicted overall distress. In both cohorts, the use of direct coping was associated with lower levels of distress, and with lower total stress scores on the BSSI. The use of fantasy and hostility was associated with high levels of distress and stress, in both groups. This screens of 220 first-year student nurses suggests that there is a problem with student distress around an initial series of general/surgical and psycho-social ward placements. The possible determinants of this distress and complex, and it is unlikely that presenting information alone will be sufficient to reduce this distress.
The aim of this trial was to evaluate the Angina Plan (AP), a cognitive‐behavioral nurse‐facilitated self‐help intervention against standard care (SC). A randomized controlled trial of 218 patients hospitalized with angina assessed participants predischarge and 6 months later. Data were collected during a structured interview using validated questionnaires, self‐report, and physiological measurement to assess between group changes in mood, knowledge and misconceptions, cardiovascular risk, symptoms, quality of life, and health service utilization. The intention‐to‐treat (ITT) analysis found no reliable effects on anxiety and depression at 6 months. AP participants reported increased knowledge, less misconceptions, reduced body mass index (BMI), an increase in self‐reported exercise, less functional limitation, and improvements in general health perceptions and social and leisure activities compared to those receiving SC. Sensitivity analysis excluding participants with high baseline depression revealed a statistical significant reduction in depression levels in AP compared to the SC participants. Analysis excluding participants receiving cardiac surgery or angioplasty removed the ITT effects on physical limitation, self‐reported exercise and general health perceptions and the improvements seen in social and leisure activities, while adaptive effects on knowledge, misconceptions and BMI remained and between‐group changes in depression approached significance. Initiating the AP in a secondary care setting for patients with new and existing angina produces similar benefits to those reported in newly diagnosed primary care patients. Further evaluation is required to examine the extent of observed effects in the longer term.
Following recent evidence of continuing high levels of distress in both trained and student nurses, a critical review of the stress reduction and stress management literature targeting both trained and student nurses is presented. Using a systematic approach, some 36 studies dating from 1980 until the present day were identified adopting either pre-experimental, quasi-experimental or experimental designs. While many work-site programmes in this series were successful in terms of adaptive changes in problem-solving, self-management skills including relaxation and interpersonal skills, affective well-being, and work performance, a number of design and evaluation inadequacies were identified. The relative lack of home-work interface or organizational level programmes to reduce work-related distress, and the scarcity of interventions targeting aspects of the work environment likely to contribute to such outcomes may have contributed to continuing high levels of distress in trained and student nurses. Recommendations regarding the future design, provision and evaluation of such work-site interventions include the further clarification of the structure of perceived stressors, and development of causal models of the stress process to identify the job characteristics 'causing' work-related distress. Such an approach would inform the design and implementation of evidence-based organizational level interventions augmenting strategies to target the health behaviour, lifestyle/risk factors and self-management skills of practitioners and students with attempts to amend problematic elements of the psychosocial work environment.
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