<qa>  What is the purpose of this research study?The purpose of this research study is to assess patient and provider attitudes towards the role that patients should play in medical decision making and self-management. We will examine the degree to which similarity of attitudes held by VA patients being treated for co-morbid diabetes mellitus and hypertension and by their primary care providers is a determinant of patient satisfaction, patient adherence, and adequacy of blood pressure and diabetic control. 