Foundations of the Psychological Intervention presents a new General Theory for Psychological Intervention (GTPI), delving into how its methodology can be applied across diverse psychological contexts. Guided by the GTPI framework, it addresses the prevailing fragmentation evident in various domains of psychology.

Sergio Salvatore is a Professor of Dynamic Psychology at the Department of Human and Social Sciences, Università del Salento, Italy.

Barbara Cordella is a Psychotherapist and Assistant Professor of Clinical Psychology at the Department of Dynamic and Clinical Psychology and Health Studies, Sapienza University of Rome, Italy.

Introduction 1. The General Theory of Psychological Intervention 2. Theory of The Object 3. Theory of The Chnage 4. Theory of The Action 5. Theory of The Client 6. Levels of the Intervention