A positive or a negative confounding variable? A simple teaching aid for clinicians and students

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Updated: Aug 17, 2026

Problem-Solving Before Instruction (PS-I): A Protocol for Assessment and Intervention in Students with Different Abilities
10:26

Problem-Solving Before Instruction (PS-I): A Protocol for Assessment and Intervention in Students with Different Abilities

Published on: September 11, 2021

Abla Mehio-Sibai1, Manning Feinleib, Tarek A Sibai

  • 1Department of Epidemiology and Population Health, Faculty of Health Sciences, American University of Beirut, Beirut, Lebanon. ansibai@aub.edu.lb

Annals of Epidemiology
|June 22, 2005
PubMed

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