With the growing emphasis on accountability and evidence-based practice, evaluation has become increasingly important in the contexts in which educational psychologists (EPs) practice. This paper describes a Target Monitoring and Evaluation (TME) system, derived from Goal Attainment Scaling (GAS) which was developed to evaluate outcomes of a wide range of interventions that were established as a result of an EP and an assistant EP involvement in two local authorities. Pupils made progress on between 94% and 97% of targets, and outcomes were significantly better than the baseline for both groups. Results are considered in terms of the value and usefulness of TME as an evaluation system and key issues relating to its implementation within EP practice are discussed. (Contains 6 figures.)