ETS Praxis Audiology Practice Test

The key idea is that acoustic reflex testing provides an objective measure of auditory function that does not depend on the patient’s behavioral responses. If the acoustic reflex can be elicited at a hearing level that is better (lower) than the level at which the patient can reliably respond behaviorally, this creates a discrepancy between objective evidence of usable auditory pathways and poor or inconsistent behavioral reporting. Such a mismatch is classic for functional or nonorganic hearing loss, where psychological or nonphysiological factors affect how the patient performs in behavioral tasks, but the reflex pathway remains intact enough to elicit a response at normal levels. Loudness recruitment, abnormal adaptation or tone decay, and high impedance/low compliance each produce different patterns that don’t explain a reflex that appears at a better hearing level than the behavioral threshold. Recruitment relates to how loudness grows with level, not to a mismatch between reflex and behavioral thresholds. Tone decay suggests retrocochlear or other dysfunction affecting sustained perception, not a discrepancy between objective reflex and subjective hearing. Middle-ear impedance issues can abolish or alter reflexes, but that would not explain a reflex appearing at a more sensitive level than behavioral response in the presence of otherwise normal reflex pathways.