Which evaluation measure is most valid and reliable for obtaining information about a typically developing 9‑month‑old infant's hearing sensitivity across 500 to 4000 Hz?

Which evaluation measure is most valid and reliable for obtaining information about a typically developing 9‑month‑old infant's hearing sensitivity across 500 to 4000 Hz?

• A. Visual Reinforcement Audiometry (VRA)
• B. Pure-Tone Play Audiometry
• C. Otoacoustic Emissions
• D. Auditory Brainstem Response (ABR) Audiometry

Answer: (A)

For an infant around nine months, the goal is to get direct, behaviorally based hearing thresholds across the key speech frequencies. Visual Reinforcement Audiometry does this by training the child to turn toward a sound and pairing that response with a captivating visual reward. By presenting stimuli at 500, 1000, 2000, and 4000 Hz and lowering the level until the head-turn response is no longer reliable, you obtain actual behavioral thresholds that reflect the child’s true hearing sensitivity in that frequency range. This method is well suited for this age because the child can actively respond in a natural way, giving reliable and valid information about hearing across the target frequencies. Otoacoustic emissions, while useful for indicating cochlear outer hair cell function, do not provide threshold estimates across frequencies. Auditory brainstem response offers an objective estimate of hearing thresholds but does not capture the child’s functional listening thresholds in everyday hearing and can be more resource-intensive. Pure-tone play is typically used with slightly older children who can follow more complex task demands. Therefore, Visual Reinforcement Audiometry is the most appropriate choice for obtaining reliable, valid hearing sensitivity data across 500 to 4000 Hz in a typical nine-month-old.

For an infant around nine months, the goal is to get direct, behaviorally based hearing thresholds across the key speech frequencies. Visual Reinforcement Audiometry does this by training the child to turn toward a sound and pairing that response with a captivating visual reward. By presenting stimuli at 500, 1000, 2000, and 4000 Hz and lowering the level until the head-turn response is no longer reliable, you obtain actual behavioral thresholds that reflect the child’s true hearing sensitivity in that frequency range. This method is well suited for this age because the child can actively respond in a natural way, giving reliable and valid information about hearing across the target frequencies.

Otoacoustic emissions, while useful for indicating cochlear outer hair cell function, do not provide threshold estimates across frequencies. Auditory brainstem response offers an objective estimate of hearing thresholds but does not capture the child’s functional listening thresholds in everyday hearing and can be more resource-intensive. Pure-tone play is typically used with slightly older children who can follow more complex task demands. Therefore, Visual Reinforcement Audiometry is the most appropriate choice for obtaining reliable, valid hearing sensitivity data across 500 to 4000 Hz in a typical nine-month-old.