Phil McEvoy

TL;DR: Although using a combination of quantitative and qualitative approaches is widely advocated, there is considerable scope for confusion due to the complex ontological and epistemological issues that arise as discussed by the authors, and there is a need to be careful in using such approaches.

TL;DR: It is argued that critical realism provides a coherent framework for evaluation research that is based on the understanding of causal mechanisms, and is particularly important for frontline services seeking to use evidence-based interventions.

TL;DR: Considerable evidence supports key tenets of Perceptual Control Theory and PCT offers a novel perspective regarding the mechanisms by which a number of familiar techniques, such as exposure and awareness, are effective; however, additional research is required to directly test the relative contribution of some PCT mechanisms predicted to underlie psychopathology.

TL;DR: A video-rating method developed to gather data at brief intervals using process measures of client perceived experience and standardized measures of working alliance is identified as a feasible and acceptable method for studying continuous measures of helpfulness and their psychological correlates during a single therapy session.

TL;DR: Criteria against which services could be designed in order to fully utilise self-help as a powerful health technology in psychological therapies are proposed, drawn from recent work on access and illness self-management.