An updated guide to spending the pupil premium has been produced by the National College for Teaching and Leadership (NCTL) and the Teaching School Council (TSC). The guide outlines six stages of a pupil premium review in a school. Although it focuses on what schools can expect from an external review of the pupil premium, it does give some guidance on how schools can conduct a self-evaluation themselves, providing some useful tools and templates for free.
The NGA is currently producing a document specifically for governors on how to measure the impact of the pupil premium in their school(s). In the meantime, visit the Guidance Centre for more information on the pupil premium.