Purpose: A scale assessing primary care physicians' priorities for genetic education (The Gen-EP scale) was developed and tested in five European countries. The objective of this study was to determine its factor structure, to test scaling assumptions and to determine internal consistency.
Methods: The sample consisted of 3686 practitioners (general practitioners, gyneco-obstetricians, pediatricians) sampled in France, Germany, the Netherlands, Sweden, and United Kingdom. We first determined the factor structure of the Gen-EP scale (30 items) on the whole sample. Scaling assumptions were then tested on each country using multitrait scaling analysis. Internal consistency was assessed across the five countries.
Results: Six factors were identified accounting for 63.3% of the variance of the items. They represented the following priorities for genetic education: "Genetics of Common Diseases"; "Ethical, Legal, and Public Health Issues"; "Approaching Genetic Risk Assessment in Clinical Practice"; "Basic Genetics and Congenital Malformations"; "Techniques and Innovation in Genetics" and "Psychosocial and Counseling Issues." In each country, convergent and discriminant validity were satisfactory. Internal-consistency reliability coefficients (Cronbach's alpha) were all above the acceptable threshold (0.70).
Conclusion: The Gen-EP scale could be a helpful instrument in different countries to organize and evaluate the impact of genetic educational programs for primary care providers.