Evidence-based practice behind the scenes : How evidence in social work is used and produced

The aim of this dissertation is to examine empirically what Evidence-based practice (EBP) and its standardized procedures become when put into practice in social work. EBP builds on the idea that professional practice should be based on systematic and reliable knowledge of the interventions and instruments used in this work. This implies a standardization of both research and practice that has been highly contested. Inspired by works within science and technology studies (STS), this dissertation analyses the actual content of the standardized procedures and their uses in social work practice. The dissertation examines a ‘critical case’, a substance abuse social services agency that has worked extensively for several years at implementing EBP, and consists of four papers focusing on three standardized procedures used by the agency in order to enact EBP: 1) the Addiction severity index (ASI) assessment instrument; 2) the psychosocial intervention Motivational interviewing, and 3) the decision-making model Critical appraisal (CA). Ethnographic methods were employed to study the agency’s concrete uses of the standardized procedures in daily practice. MI was also followed in the research literature as it became established as an ‘evidence-based’ intervention. Fundamentally, the development of the standards of EBP can be a messy and paradoxical process. In the stabilization of MI, its differences and ‘fluidity’ have eventually been made to disappear and left a stable ‘evidence-based’ object. Findings from the ethnographic studies show that EBP, as enacted in the agency’s daily practice, is a bureaucratic project where the agency’s managers have decided on and control the use of a set of standards. Thus, what constitutes relevant evidence is based not on professional discussion within the agency but is ultimately determined by the managers. In practice, the standards introduce new logics that cause tensions within the agency, tensions which the social workers are left to handle. Main conflicts concern how the client work is ordered and contradictory organizational rationales. The three standards are used to varying extent, which can be understood by examining what they seek to standardize and how they are put to work. CA was not used at all, mainly due to its design. Disregarding organizational rationales that are unavoidable within the social services, it could not be adapted to the agency’s work. With ASI and MI the situation was different, mostly because of their organizational adaptability. ASI could be implemented in several phases of the agency’s work flow resulting in adjustments of both the instrument and the work flow. As a ‘fluid intervention’, MI was constrained by, but also adjustable to the organization. It was thus possible for both ASI and MI to transform and be transformed by pre-existing practices, in effect creating new practices. A major conclusion is that EBP and its standardized procedures is a more dynamic and multifaceted process than previously acknowledged in social work. Rather than a deterministic one-way path, there are different kinds, degrees, and mutual transformations of standardization processes, which must be appreciated in research and in practical efforts to implement EBP. Given the importance of the organization in professional social work, there is a need to move away from individualistic conceptions of EBP and to consider what evidence use might mean from an organizational perspective.At the time of the doctoral defense, the following paper was unpublished and had a status as follows: Paper 4: Manuscript.