High Quality Psychosocial Interventions Research is the second edition of the book High Quality Psychotherapy Research, written by Drs. Patricia Areán and Helena Kraemer. Like the original book, this fully updated version serves as a comprehensive primer on the clinical trial research pipeline as it applies to psychosocial interventions. It is meant to serve alongside other works that delve into the theory of research methods and the conduct of data analysis to be the "how-to" book for running a clinical trial and the guide for planning a course of investigation into a psychosocial intervention. The book provides a step-by-step process for investigators to follow, discussing the daily conduct of these studies and common concerns, such as how to write a treatment manual, manage your study team, recruit participants, and finance and cost your trial. Arean and Pullman offer practical, hard-earned lessons of conducting clinical trials for psychosocial interventions--the kind of insights rarely taught in classrooms but often gained through mentorship, hands-on experience, and trial and error. The book delves into the ins and outs of different clinical trials, from proof of concept to large scale digitally remote trials and explains the purpose of each trial type. High Quality Psychosocial Interventions Research aims to provide something of value for researchers at all stages of their careers.