HIS Practice Test

Hearing health care is a rapidly growing field with increasing demand for skilled professionals. One critical role in this space is that of the Hearing Instrument Specialist (HIS). These licensed professionals assess hearing issues and fit hearing aids, improving quality of life for thousands of individuals.

If you're interested in a rewarding and impactful healthcare career that blends technical knowledge with patient care, becoming a certified hearing instrument specialist could be your ideal path. This guide outlines everything you need to know—from training and certification to exam preparation and the distinction between audiologists and HIS professionals.

Audiologists preparing for hearing instrument certification often strengthen their diagnostic foundation by working through the CAOHC practice test, which reinforces occupational hearing conservation principles directly relevant to HIS fitting work.

If you also support patients with speech and language needs alongside hearing loss, the ASHA practice test offers useful review of communication disorders that frequently overlap with hearing instrument cases.

HIS Exam at a Glance

According to International Hearing Society, “The exam includes 105 multiple-choice questions based on the Competency Model , which defines the exam content areas. Of these, 80 questions are scored and count toward your final result.”^[1]

HIS content outline and where to practise each area

The content areas below are copied from the official HIS content outline published by International Hearing Society, with the share of the exam each area carries. The right-hand column shows which of our practice sets covers it.

Worked examples: how to reason through HIS questions

These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.

Example 1

Question: What is a common challenge professionals face when applying quality assurance & performance improvement principles in Hearing Instrument Specialist Certification?

1. Balancing theoretical knowledge with practical application
2. Having too much support from colleagues
3. Excessive simplicity of industry regulations
4. Lack of any professional development opportunities

Answer: A. Balancing theoretical knowledge with practical application

Explanation:

The correct answer is balancing theoretical knowledge with practical application. Training teaches the rules, but real clients bring situations that textbooks do not fully cover, and applying what you know under those conditions is the everyday difficulty.

Having too much support from colleagues is not a challenge at all; it helps. Excessive simplicity of industry regulations is also wrong, because regulations are usually detailed rather than simple. A lack of any professional development opportunities is an absolute claim that rarely holds, since training and continuing education are generally available.

Rule to remember: when a question asks for a common challenge, choose the realistic, balanced difficulty and be wary of options built on extremes such as too much, excessive or any.

Example 2

Question: Which documentation practice is most important for evidence-based practice & research methods in the HIS field?

1. Recording only successful outcomes
2. Maintaining complete, accurate, and timely records
3. Documenting only when legally required
4. Using informal notes instead of official records

Answer: B. Maintaining complete, accurate, and timely records

Explanation:

The correct answer is maintaining complete, accurate, and timely records. Good records let you show what was done and why, support quality checks, and meet legal duties, and they are the base of any evidence-based approach.

Recording only successful outcomes is wrong because it hides problems and distorts what the data shows. Documenting only when legally required is wrong because useful records also support care and review, not just compliance. Using informal notes instead of official records is wrong because informal notes are hard to verify, easy to lose and may not be accepted as a proper record.

Rule to remember: record everything relevant, accurately and promptly, in the official system.

Example 3

Question: Which type of closed captioning service provides real-time captions transcribed by a trained stenographer for live events?

1. CART (Communication Access Real-Time Translation)
2. DVD subtitles
3. Pre-recorded captions
4. Automatic speech recognition (ASR) only

Answer: A. CART (Communication Access Real-Time Translation)

Explanation:

The correct answer is CART, Communication Access Real-Time Translation. A trained stenographer types what is said as it happens, so people who are deaf or hard of hearing can follow a live event in near real time.

DVD subtitles are wrong because they are prepared in advance for recorded material and cannot follow a live speaker. Pre-recorded captions are wrong for the same reason: they are made before the event. Automatic speech recognition only is wrong because software alone tends to make more errors with accents, technical terms and background noise, and it has no trained person correcting it.

Rule to remember: live event plus a trained human captioner points to CART.

How to use these practice tests

Start with the official material. Read the exam content outline and the study guide from the International Hearing Society so you know what each area covers and how the questions are written. Then check with your state or provincial licensing agency about eligibility and what counts as passing, because that varies.

Next, take a practice set from each content area in the table above, without notes. Do not worry about the score at this stage. Read the explanation for every question you miss and for every question you guessed correctly, and write a short line about the rule behind it.

Group your misses by area. Spend most of your next sessions on the areas where you missed the most, and return to the matching practice set after each session to see whether the same mistakes repeat. Use the full practice test to rehearse sitting through a long run of multiple-choice questions at a steady pace.

In the final days, stop adding new material. Review your written rules, redo only the questions you missed, and confirm your booking details, testing center and identification requirements. Remember that some questions on the real exam are unscored, so do not let one hard question affect the next.

Key Takeaways

Free HIS Practice Test Online

• The Hearing Instrument Specialist Certification is required for professionals who test hearing and fit hearing aids.

• HIS professionals focus on amplification solutions, while audiologists handle medical diagnostics and treatment.

• Formal training includes coursework in audiology, hearing aid technology, and clinical experience.

• Certification exams, such as the ILE, are a necessary step toward licensure.

• Continuing education is essential for maintaining licensure and staying current with advancements in hearing care.

Understanding Hearing Instrument Specialist Certification

The Hearing Instrument Specialist Certification is a formal credential that validates your ability to test hearing and fit hearing aids. Certification is generally managed at the state level in the U.S., though national certification is available through the International Hearing Society (IHS).

Requirements for certification typically include:

• Completion of a state-approved education program

• Clinical practicum or supervised training hours

• Passing the International Licensing Examination for Hearing Healthcare Professionals (ILE)

• Meeting continuing education (CE) requirements for license renewal

Some states may also have unique requirements such as jurisprudence exams or background checks. It is important to check with your state licensing board for the most accurate information.

What Is a Hearing Instrument Specialist?

A Hearing Instrument Specialist is a licensed healthcare professional trained to evaluate hearing and fit hearing aids. HIS professionals primarily work with adults who have hearing loss and are looking for solutions that enhance hearing ability through amplification devices.

Key responsibilities include:

• Administering hearing tests

• Selecting and fitting appropriate hearing aids

• Programming and adjusting hearing instruments

• Providing patient education and follow-up services

• Referring patients to audiologists or physicians when needed

HIS professionals are often employed in private practices, hearing aid clinics, ENT offices, and retail hearing aid centers. Their work plays a crucial role in non-medical hearing care and directly improves communication and overall well-being for many patients.

Hearing Instrument Specialist Training Programs

To become a certified Hearing Instrument Specialist, formal training is essential. Many states and national certification bodies require candidates to complete an educational program that covers both theoretical and clinical components.

Common components of HIS training include:

• Anatomy and physiology of the ear

• Acoustics and hearing science

• Audiometric testing and interpretation

• Hearing aid technology and fitting techniques

• Patient counseling and ethics

• Clinical practicum under supervision

Some community colleges and technical schools offer certificate or associate degree programs in hearing instrument sciences. Online and hybrid programs are also available for working professionals seeking flexibility.

Audiologist vs. Hearing Instrument Specialist: Key Differences

While both audiologists and hearing instrument specialists work in the hearing healthcare field, their roles, education, and scopes of practice differ significantly.

Audiologist:

• Requires a doctoral degree (Au.D.)

• Licensed to diagnose and treat all types of hearing and balance disorders

• Can provide medical clearance and comprehensive audiologic evaluations

Both professionals play complementary roles in hearing care, with audiologists handling medical cases and HIS focusing on amplification solutions.

Hearing Instrument Specialist Study Guide: How to Prepare

Preparation for the HIS certification exam is crucial to your success. A well-rounded study guide should cover both core concepts and practical skills. The International Hearing Society offers an Exam Prep Course designed to help candidates prepare for the ILE.

Key study areas include:

• Pure-tone and speech audiometry

• Masking techniques and sound field testing

• Ear impressions and earmold modifications

• Use official prep materials from IHS

• Join online forums and study groups

• Take practice exams to assess readiness

How to Become a Hearing Instrument Specialist: Step-by-Step

Here is a simplified step-by-step guide to becoming a certified Hearing Instrument Specialist:

• Step 1: Meet educational prerequisites (usually a high school diploma or GED)

• Step 2: Enroll in a state-approved training program

• Step 3: Complete required clinical hours or apprenticeships

• Step 4: Register and prepare for the ILE certification exam

• Step 5: Apply for state licensure (including submitting exam scores and any additional requirements)

• Step 6: Maintain certification through continuing education credits (CEUs) and license renewal

The process may vary depending on your state’s laws and the institution through which you complete your training. It’s always advisable to stay updated with your state’s hearing aid dispenser board.

Conclusion

Becoming a Certified Hearing Instrument Specialist is a meaningful and impactful career choice for those passionate about helping individuals with hearing loss. With the right training, certification, and professional development, you’ll be well-equipped to provide top-tier hearing aid solutions and support lifelong hearing health.

The field offers not only job security and advancement but also the satisfaction of making a tangible difference in people's lives. As hearing technology continues to evolve, HIS professionals remain on the frontlines of innovative, patient-centered care.

Sources & last verified

1. International Hearing Society — number of questions, time limit (official source). “The exam includes 105 multiple-choice questions based on the Competency Model , which defines the exam content areas. Of these, 80 questions are scored and…” Verified Oct 24, 2026 · source checked Oct 24, 2026.
2. International Hearing Society — exam fee, delivery, eligibility (official source). “The $260 USD exam fee is payable by any major credit or debit card.” Verified Oct 24, 2026 · source checked Oct 24, 2026.
3. International Hearing Society — passing score, retake fee, score release, testing window (official source). “State/provincial licensing agencies have the authority to determine what constitutes passing/failing on the examination. All states/provinces where test-takers receive automatic results have adopted IHS’ recommended…” Verified Oct 20, 2026.
4. International Hearing Society — other (official source). “conduct patient client assessment 21%” Verified Nov 1, 2026.

How we verify: editorial & fact-checking policy. Report an error: contact us.