Dual information processing, two selves, theory describes two truths for every situation-one a rational-cognitive (conceptual) truth, the other an experiential truth. Within health care research, questions are formulated in such a way that only one of the two systems can answer. This appears to skew not only clinical results but also the cost-effectiveness of therapies. It seems past time to collect the views of both selves and compile them into all comprehensive health care assessments.