In Critical Thinking and the Process of Evidence-Based Practice, Eileen Gambrill provides a focused overview of the implementation of evidence-based practices necessary for competent and ethical practice. This authoritative book introduces readers to the origins and controversies regarding evidence-based practices and concisely addresses the most common obstacles practitioners encounter. Though evidence-based practice (EBP) is designed to help individual practitioners and clients make informed decisions, since its early development, misunderstandings about what does and does not qualify as scientifically-sound findings have led to widespread misrepresentations of EBP's role in the profession. This text addresses the most widely encountered misunderstandings, and guides readers through the necessary steps of making decisions based on both knowledge and ignorance. The book further discusses ethical and evidentiary issues, and includes chapters on clinical expertise, argumentation, avoiding fallacies, and common organizational and personal obstacles to optimizing the quality of services. It will serve as a necessary resource to professionals as well as students in the helping professions.