Send us Fan Mail In 1955 a psychiatrist named Albert Ellis was frustrated. He had trained as a psychoanalyst. He had spent years sitting behind clients, interpreting their dreams, excavating their childhoods. And he had concluded — with the directness that would define his entire career — that it wasn't working well enough. Ellis believed that psychological suffering was not primarily caused by childhood events or unconscious drives. It was caused by what people told themselves about those events. Change the belief, he argued, and you change the suffering. A decade later Aaron Beck arrived at a similar conclusion through a different route. Working with depressed patients at the University of Pennsylvania, he found they weren't primarily hostile — they were thinking in systematically distorted ways. About themselves. About the world. About the future. Ellis came first. Beck built the evidence base. Both were arguing the same essential point: what you think shapes how you feel. What neither of them fully anticipated was where the field would go next. What we cover: 🧠 The three waves — behavior therapy, cognitive therapy, and the third wave shift from changing the content of thoughts to changing the relationship to thoughts 📋 CBT — Aaron Beck — the cognitive triad, automatic thoughts, cognitive distortions, the thought record, behavioral activation, and the broadest evidence base in psychotherapy ⚖️ REBT — Albert Ellis — the ABC model, rational vs. irrational beliefs, demandingness, awfulizing, low frustration tolerance, and disputation 🌿 ACT — Steven Hayes — psychological flexibility, the six core processes, defusion, acceptance, values, committed action, and the 1,500+ RCT evidence base 🔄 MBCT — Segal, Williams, and Teasdale — mindfulness-based relapse prevention for recurrent depression, decentering, and the 50% relapse reduction evidence 🎯 DBT — Marsha Linehan — where it fits in the cognitive behavioral family and how it connects to the third wave 🔍 Approach selection — how to match the right tool to the right client based on the maintenance mechanism, the evidence base, and the clinical presentation Five exam-style multiple choice questions covering developer attribution, ACT defusion, REBT disputation, MBCT evidence base, and the three-wave progression. Circle members: The full premium version of this episode — extended clinical vignettes on approach selection and when the approach doesn't fit the presentation, plus three additional exam questions — is in your Circle feed. Also in this episode: The ACT randomized controlled trial list passing 1,500 trials in 2026 — a milestone that reflects how rapidly the evidence base has grown since Hayes first articulated the model. And the WCCBT 2026 World Congress of Cognitive and Behavioural Therapies in San Francisco — the field's major international gathering, with tracks on transdiagnostic approaches, psychedelic-assisted CBT, and CBT in resource-limited settings. Want to go deeper? This week's newsletter covers the full CBT evidence base by presentation, the six ACT processes in clinical depth, behavioral activation sequencing, REBT disputation in practice, and a case conceptualization walkthrough applying each modality to the same client. Always free — link in the show notes. The study guide, deep dive quiz, and live study session are inside Licensure Lifeline Circle — along with the full premium episode. Fourteen-day free trial. Link in the show notes. DSM Genie is live — particularly useful this week for matching treatment approach to presentation in your exam prep. Link in the show notes and at licensurelifeline.com. Share this episode with one person who is studying right now. A five-star rating on Apple Podcasts helps other pre-licensed therapists find the show. Email us at licensurelifeline@gmail.com — especially if you have a case where matching the right approach to the right client changed the clinical picture. Resources: 🌐 Everything in one place — licensurelifeline.com Support the show