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Some use testing methods backed by solid science, says Nicholas Reed, an audiologist and assistant professor in epidemiology at the Johns Hopkins Bloomberg School of Public Health in Baltimore, while others have little evidence to support them.
A key limitation of apps and online tests is that they can’t rule out potentially reversible causes of hearing loss, such as excess earwax, the way an audiologist would during an in-person test. “If you do a self-hearing screen, a person can’t look into their own ear,” says Yula Serpanos, a professor in communication sciences and disorders at Adelphi University in Garden City, N.Y.
That said, an online test could serve as a useful screening tool. If you want to try one, consider the following.
Two types of home tests
For most online and app-based tests, you’ll be advised to wear headphones and sit in a quiet spot.
The two main types both have advantages and drawbacks. In pure-tone audiometry, which involves some aspects of the testing that audiologists perform, tones are played in decreasing volumes to determine your specific level of hearing loss. But these hearing tests require the proper equipment to be used — a test given on an iPad, for example, may work with only AirPods headphones — which limits options.
In the second type, known as speech-in-noise or digits-in-noise (DIN), you’ll be asked to identify words, numbers or phrases amid background noise. DIN tests generally don’t require specific hardware. But they’re less precise, and they serve as a more general indicator of a problem.
How to find a good one
The experts we spoke with suggest looking for the following.
Validation: The word “validation” in the description suggests that a test has been scientifically evaluated for accuracy, Serpanos says. It’s even better if the description has a summary of (or links to) the validation studies. One such test is the World Health Organization’s hearWHO app.
Clear, thorough directions: Treat tests that provide scanty directions or explanation of their methods with caution, Reed says. A test should also monitor background noise and alert you if it’s too loud for an accurate result. For a pure-tone audiometry test, the instructions should tell you which type of headphones to use.
What to do with the results
If a reputable online hearing test tells you that you don’t have hearing loss and you don’t suspect you’re having trouble hearing, it’s a reasonably reliable result, Reed says. “Most good tests err on the side of caution,” he says, and are more likely to suggest you might have hearing loss when you really don’t.
If the test says you do have hearing loss, it’s best to think of that as a starting point, Serpanos says. You can take the results to your doctor, an audiologist or a licensed hearing-instrument specialist for further evaluation.
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