Triangulation approach to developing, evaluating, and applying the evolving theory of adolescent acceptance of asthma.

Acceptance is a term used by healthcare professionals regarding patients' psychosocial adjustment to chronic conditions. This paper describes a triangulation approach, applied over 25 years, to develop and evaluate a theory of adolescent acceptance of asthma. The theory was used to guide the development and evaluation of an education and counseling program focused on fostering acceptance. The approach was effective in (a) defining acceptance and isolating its attributes; (b) identifying its antecedents and consequences, and specifying relationships among them; (c) revealing overlooked variables and augmenting theory; and (d) using theory to guide development and evaluation of the self-management program.