In our ever-present age of accountability, career development professionals are increasingly called upon to document evidence-based outcomes and other metrics of programme effectiveness. In this article, we will review the key components of effective programme evaluation, including purposes and types of evaluation. Our review will span empirical and practical literature across disciplines and within guidance and counselling, specifically. We will review current evaluation models within an international context but focus predominantly on US based ones, along with articulating their shortfalls. Finally, we will present a potentially transformative advocacy-infused model of programme evaluation.