HAC exam in 5 weeks — study approach for the audiology science sections

Audiogram interpretation questions are definitely on there and they do expect you to connect configuration to recommendation. Ski-slope vs flat loss vs reverse slope — know what those look like and what product characteristics matter for each.

IHS guide covers this but some people find the Academy of Dispensing Audiologists materials supplement it well for the science sections.

65-70% with 5 weeks to go is fine if you're consistent. I was at 68% at 4 weeks out and passed with a 79%. The IHS guide really is the right source — don't stray too far outside it.

The acoustic physics stuff is genuinely abstract if you haven't had formal coursework in it. YouTube has some good audiology fundamentals videos that helped me visualize concepts like impedance and resonance better than reading alone did.

The real ear measurement questions I saw were more conceptual than procedural — understanding what REM is for and how insertion gain relates to target curves, rather than step-by-step procedure details. Know the principles and you'll handle those questions fine.

Honestly I almost bailed around week 3 because the psychoacoustics stuff felt like a different language. I'd been fitting aids for years and suddenly I'm reading about critical bands and masking curves and none of it was clicking. What helped me was stopping the passive reading and just forcing myself to draw the auditory pathway from scratch every morning until I could do it without looking. Dumb and repetitive but it actually worked.

The acoustic physics is less scary than it looks once you realize most of the questions test the same handful of relationships over and over. You'll be fine on the practical stuff, don't overthink that. Just make sure you're not neglecting the anatomy because that's where I lost easy points early on. Five weeks is enough time if you're consistent. I passed with room to spare and I genuinely thought I was going to fail walking in.

I failed my first attempt and honestly the anatomy section killed me. I'd been spending all my time on case studies and completely ignored how the cochlea actually processes sound. What changed for me the second time was slowing way down on the physiology stuff, like really understanding hair cell function and how that connects to the audiogram. I also drilled acoustic physics until it clicked, because once it does, psychoacoustics starts making a lot more sense too. One thing that helped was doing practice questions specifically on those topics, not just reading, and I found free hearing aid audiology hearing assessment questions useful for finding the gaps I didn't know I had.

Five weeks is plenty of time if you're strategic. Don't ignore what you're good at completely, but weight your hours toward the weak spots. The audiology science questions on the actual exam aren't super deep, they just assume you know the foundational stuff cold. Get that foundation solid and you'll be fine.