tailieunhanh - báo cáo khoa học: " Using the theory of planned behaviour as a process evaluation tool in randomised trials of knowledge translation strategies: A case study from UK primary care"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Using the theory of planned behaviour as a process evaluation tool in randomised trials of knowledge translation strategies: A case study from UK primary care | Ramsay et al. Implementation Science 2010 5 71 http content 5 1 71 Implementation Science IMPLEMENTATION SCIENCE RESEARCH ARTICLE Open Access Using the theory of planned behaviour as a process evaluation tool in randomised trials of knowledge translation strategies A case study from UK primary care 1 1 2 3 4 Craig R Ramsay Ruth E Thomas Bernard L Croal Jeremy M Grimshaw Martin P Eccles Abstract Background Randomised trials of knowledge translation strategies for professional behaviour change can provide robust estimates of effectiveness but offer little insight into the causal mechanisms by which any change is produced. To illustrate the applicability of causal methods within randomised trials we undertook a theory-based process evaluation study within an implementation trial to explore whether the cognitions of primary care doctors predicted their test requesting behaviours and secondly whether the trial results were mediated by the theoretical constructs. Methods The process evaluation comprised a cross-sectional questionnaire survey of a random 50 sample of the randomised groups of primary care practices in Grampian NHS Grampian UK who took part in a trial of the effect of enhanced feedback and brief educational reminders on test requesting behaviour. The process evaluation was based upon the Theory of Planned Behaviour and focussed on three of the test requesting behaviours that were targeted in the trial - ferritin follicle stimulating hormone FSH and Helicobacter Pylori serology HPS . Results The questionnaire was completed by 131 primary care doctors 56 from 42 98 of the sampled practices. Behavioural intention attitude and subjective norm were highly correlated for all the tests. There was no evidence that perceived behavioural control was correlated with any of the other measures. Simple linear regression analysis of the rate of test requests on minimum behavioural intentions had R2 of and for ferritin FSH and .