Siegfried Grief

The review gives a theoretically grounded overview over new advances of research on coaching outcomes. In the first part general standard outcome measures and different specific methods are presented. The second part summarises studies that investigate coaching outcomes as the result of changes in pre-requisites or preconditions for coaching (e.g. change readiness and persistence of the client) and success factors in the coaching sessions, (e.g. esteem and emotional support the coach, clarification of the goals). The third part describes eight experimental and quasi-experimental studies, with and without random assignments. particularly individual coaching by external coaches, peer-coaching, self-coaching programmes and control groups. The results show that the different coaching interventions produce significant and sometimes strong but not always expected and consistent effects. A discussion of perspectives of theory and research and an orientation model for future outcome studies close the contribution.

Keywords: Coaching outcome, individual coaching, peer-coaching, self-coaching, coaching theory, self-reflection.

Full article: Volume 2, Issue 3 pages 222 - 249