36th IAPCT Conference – York, UK | October 7-10, 2026 + MOL practitioners meeting, October 12+13, near Manchester Welcome to the 36th IAPCT Conference and Annual Meeting, held near the historic city of York, UK, […]
“Quantitative Analysis of Purposive Systems: Some Spadework at the Foundations of Scientific Psychology“ William T. Powers Psychological Review, 1978, Vol. 85, No. 5, 417-435