The work of the Open University is situated historically in widening participation, both through its open access policy and the modular structure of the qualifications if offers. The process by which the Open University produces more British Psychological Society accredited graduates with GBC than any other HEI, and the contribution of introductory level psychology modules to a broad spectrum of other qualifications, is discussed. Statistical analysis of module recruitment and progression to psychology modules shows that level 2 (NQF level 5) psychology modules recruit well from mature students, women, and those with low levels of previous educational achievement and living in low participation postcode (LPC) areas as defined by funding councils. However, those with lower educational qualifications or from LPC areas have lower pass rates and progression to higher levels of study than other groups. The factors involved in this are discussed, together with current initiatives aimed at producing change. (Contains 3 figures and 5 tables.)