Part I

What Is Part I

Part I is a computer-based test, covering the basic sciences. It consists of 255 questions across six domains.

The administration of Part I is divided into two sessions; each session consists of three domains.

Session 1: General Anatomy, Spinal Anatomy, and Physiology

Session 2: Chemistry, Pathology, and Microbiology

You are allotted 3 hours and 26 minutes of total testing time for Part I. Testing appointments are 4 hours with a tutorial, end of exam survey, and an optional 15-minute break after the first session.

Part I Tests Six Basic Science Areas (Domains):

 

  • General Anatomy
  • Spinal Anatomy
  • Physiology
  • Chemistry
  • Pathology
  • Microbiology

Who Can Take Part I?

 

Topics, Sample Tests and Reference Texts

The NBCE develops every exam based on a test plan. The detailed Part I Test Plan includes topics, subtopics, and weightings (the percentage of the test devoted to each topic).

The NBCE uses reference texts from the chiropractic colleges. See the list of Part I Reference Texts.

The NBCE offers Sample Tests for each Part I domain ($15 each) and a sample test including all domains for $60. You will receive an overall score for the test, but will not see which questions were answered correctly/incorrectly.

 

Test Sites And Test Site Rules

The NBCE offers Part I at chiropractic colleges and Prometric testing centers across the country. Each test site utilizes computer-based testing. You can select a test site when you apply. See the list of on-campus Test Sites.

The NBCE is committed to exam security. The only item you are allowed to bring into the secure testing area is one form of ID. The NBCE will provide a place to store your car key (one key allowed). Please review the complete list of Test Site Rules before you arrive to take your test.

Exam Administration Dates

Click here for 2025 schedule.

What Is A Passing Score For Part I?

A passing score of at least 375 is required for the Part I Examination.

 

Fees

Part I                                    $710

Individual Domains           $335

 

Withdraw / Reschedule

Prior to the published application deadlines, examinees may withdraw from or reschedule their Parts I, II, III, Physiotherapy computer-based exams using the Prometric scheduling tool. After published deadlines, you may not make any changes to your appointment and the NBCE will issue no refunds. Cancellations and reschedules are allowed as follows:

  • 30 or more days prior to appointment – no charge to examinee.
  • 29-16 days prior to appointment – Prometric charges a $50 reschedule/cancellation fee.
  • 15 days or less prior to appointment – candidate cannot reschedule or receive a refund.

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