The groundbreaking second edition of Nonlinear Contingency Analysis gives practitioners a powerful framework for understanding and shaping behavior without coercion.

Nonlinear contingency analysis (NCA) builds on Israel Goldiamond's classic work, offering a systematic method for analyzing how multiple contingencies interact. Rather than eliminating behavior, NCA equips one to construct new repertoires and expand options for clients, students, and communities.

Inside, you'll find:

• Current applications with autistic children and their families.
• An expanded treatment of emotion in clinical practice.
• An introduction to constructional exposure therapy (CET).
• A new chapter on genuine consent, assent, and degrees of freedom for verbal and nonverbal individuals and even animals.

With updated models, real-world case studies, and expanded applications, this edition is more than theory: it's a practical guide to ethical, socially meaningful, and freedom-enhancing practice.

T. V. Joe Layng, PhD, a pioneering behavior scientist, has dedicated over five decades to research, clinical innovation, and educational technology applications, significantly advancing nonlinear contingency analysis and the constructional approach.

Paul Thomas Andronis, PhD, is a leading experimental behavior analyst whose landmark discovery of contingency adduction and decades of academic leadership shaped modern behavioral science and its applied impact.

R. Trent Codd III, EdS, BCBA, is a clinician-scholar integrating behavior analysis and cognitive-behavioral therapy. He has extensive experience in clinical practice, training, supervision, and authorship.

Awab Abdel-Jalil, PhD, BCBA, is an applied researcher at Upstate Caring Partners, and an educator with scholarship/presentations on nonlinear contingency analysis, constructional approaches, and assent-based interventions.