William Glasser Institute Singapore is part of a global network of non-profit organisations that promotes the ideas and teachings of the late Dr. William Glasser in Choice Theory, Reality Therapy, Lead Management and Glasser Quality Schools. Through structured training programs, workshops and certification process, thousands from educators, clinicians, managers to individuals have benefitted and impacted lives of others since 1965. Be proactive in enriching your life and those around you!


Choice Theory explains how our behaviour is shaped by our best attempt to satisfy one or more of five basic needs built into our genetic structure. It contends that the only person's behaviour we can control is our own.

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If you are interested in the practice and theory of Choice Theory Reality Therapy (CTRT), we welcome you to join us as a member. As a member, you enjoy concession rates for all our organised trainings and events, network with practising members.

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