This self-study manual provides users with all the learning materials they need to train for the British Psychological Society's new Test Administration Certificate. The manual covers both modules of the programme: an introduction to testing and good practice guidelines for test administration; and practicalities of test administration. It includes new material on computer-based, internet-based and other mixed modes of test administration, and contains self-assessment exercises to enable users to monitor their progress and know when they are ready to be assessed.