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CBT Radio

Jan 9, 2012

This episode is primarily relevant to professionals.

In this episode, R. Trent Codd, III, Ed.S. interviews Marc Branch, PhD about Null-hypothesis Significance Testing (NHST). Topics they discuss include:

  • Common misunderstandings about NHST 
  • What p really is 
  • Side effects of NHST 
  • Logical problems with NHST 
  • Reasons NHST remains prevalent despite the many known problems 
  • Alternatives to NHST 


Dr. Branch is best known for directing one of the country’s active programs in behavioral pharmacology. He has conducted a long line of research on agents such as pentobarbital, d-amphetamine, and cocaine. His research has primarily been concerned with behavioral factors that influence whether and the degree to which tolerance develops in the face of repeated exposure. His work has been supported continuously for 30 years by the National Institute of Mental Health (NIMH) and National Institute on Drug Abuse (NIDA) and has been published in flagship journals in both behavior analysis and pharmacology. In recognition of this consistent track record of excellence, he has been the recipient of a coveted research career award from NIMH. He is a fellow of both the American Psychological Association and the American Psychological Society.