1.2 The NJ CNA Exam Format

The Two-Part NNAAP Competency Evaluation

New Jersey's certification exam follows the National Nurse Aide Assessment Program (NNAAP), the most widely used CNA testing blueprint in the United States (the NNAAP framework is owned by Credentia). You must pass two parts: a hands-on Skills Evaluation and a Written (or Oral) Knowledge Test. The exam is administered for NJ DOH by the state's contracted vendor, PSI — candidates register and find dates through the PSI candidate portal and the NJ DOH-referenced Candidate Information Bulletin.

Because state testing contracts can change, always confirm the current vendor, fees, and test-center locations in the bulletin linked from NJ DOH before you register.

Part 1: The Skills Evaluation

The Skills Evaluation is performed in person, in front of a trained Nurse Aide Evaluator, on a live volunteer or a mannequin. This is the part candidates underestimate most.

Handwashing is effectively guaranteed because it is an indirect-care infection-control skill that protects every resident. One of the four random skills is always a measurement skill — for example blood pressure, radial pulse, counting respirations, measuring urinary output, or weighing a resident — so practice your measurement technique and accurate recording until it is automatic. The remaining skills are drawn at random from the published NNAAP skills list (denture care, perineal care, range-of-motion for one joint, assisting with ambulation using a gait belt, and so on).

The evaluator hands you an instruction card listing your five assigned skills at the start. You may complete them in any order, but the 30-minute clock covers all five together, so a smart strategy is to do quick skills first and bank time for the longer ones (a bed bath or a transfer takes far longer than counting respirations). At the 25-minute mark the evaluator warns you that five minutes remain. You must also record what you measure on the form provided, and an inaccurate or unrecorded reading can fail a measurement skill even if your technique looked correct.

Critical Element Steps: The Decisive Rule

Each skill checklist contains Critical Element Steps, printed in bold on the evaluator's form. These are the steps that protect resident safety, dignity, or infection control. The rule is unforgiving: a missed or incorrectly performed key step fails that entire skill, no matter how smoothly you did everything else. Classic key steps include checking water temperature before bathing, locking wheelchair or bed wheels before a transfer, keeping a resident covered for privacy, and washing hands at the right moments. A useful mental model is the universal indirect-care steps that frame every skill:

• Knock and greet the resident, introduce yourself, explain the procedure, and obtain cooperation.
• Provide for privacy (close the curtain/door, keep the resident draped).
• Wash your hands and apply gloves when indicated.
• Raise the bed to a safe working height; lower it and engage the call light when done.
• Maintain safety and report any changes.

Miss one of these and the evaluator marks the skill failed. Because you only have 30 minutes for all five skills, build muscle memory so the indirect-care steps happen reflexively and your time goes to performing the skill correctly, not remembering the sequence.

Part 2: The Written (or Oral) Knowledge Test

The knowledge test is multiple-choice and covers the NNAAP content domains: Physical Care Skills (the largest share, including activities of daily living, basic nursing skills, and restorative skills), Psychosocial Care Skills (emotional, mental-health, and spiritual needs), and the Role of the Nurse Aide (communication, residents' rights, legal and ethical behavior, and being a member of the health-care team).

The roughly 10 unscored pretest items are seeded among the questions to validate future test forms; you cannot tell them apart from scored items, so answer every question with full effort. Treat the official NJ Candidate Information Bulletin as the source of truth for the exact count, time, and passing score, since these can be updated.

The Oral Knowledge Test

New Jersey offers an Oral Knowledge Test for candidates who have difficulty reading English, available in English and Spanish. Candidates wear headphones and each question with its answer choices is read aloud (repeated for clarity) before the candidate selects an answer. The oral form tests the same content as the written version, so it is an accessibility accommodation, not an easier exam.

How the Two Parts Fit Together

You must pass both components to be certified. A strong written score does not offset a failed skill, and a flawless skills demonstration does not waive the knowledge test. New Jersey allows a limited number of retakes within set time windows (covered in Section 1.3), but each retake costs time against your 120-day work window and your post-training testing deadline — so plan to be exam-ready on both parts at once.