Project Implicit (Harvard University)


  • Weight bias / stigma


  • Health Professionals

Learner Level

  • Post-Licensure

Instructional Methods

  • Group Discussion
  • Self-Reflection / Journaling

Implicit Associations Test: Weight Bias

| 1 HRS Explaining The hours

This validated measure of automatic, unconscious attitudes can be used to measure implicit weight bias. Increasing self-awareness is an important first step in understanding and reducing weight bias.


The weight bias IAT can be incorporated into existing training modules and/or used in conjunction with other self-assessments that providers and health care professionals can complete to learn about their attitudes toward patients with obesity, such as the Attitudes Toward Obese Persons Scale (ATOP), Beliefs About Obese Persons Scale (BAOP), Fat Phobia Scale, and Antifat Attitudes Scale (AFAS).

How to Access

The Project Implicit website houses the test and additional information on the scoring methodology:

Follow-Up Questions (from the Rudd Center)

Learners should also question their own attitudes and identify any personal weight biases that they may hold:

  • What assumptions do I make based only on weight regarding a person’s character, intelligence, professional success, health status, or lifestyle behaviors?
  • Could my assumptions be impacting my ability to help my patients?
  • How comfortable am I working with patients of different sizes?
  • What kind of feedback do I give to patients with obesity?
  • Do I give appropriate feedback to encourage healthful behavior change?
  • Am I sensitive to the needs and concerns of individuals with obesity?
  • Do I consider all of the patient’s presenting problems, in addition to weight?
  • What are my views about the causes of obesity? How does this impact my attitudes about persons with obesity?
  • Do I treat the individual or only the condition?
  • What are common stereotypes about persons with obesity? Do I believe these to be true or false? What are my reasons for this?