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Random Gap Detection Test (RGDT)
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Supplemental: Acute Hospitalized, Concussion/Mild TBI, Epidemiology, Moderate/Severe TBI: Rehabilitation Traumatic Brain Injury (TBI)

Short Description of Instrument

The Random-Gap Detection Test (RGDT) is a component of Central Auditory Processing testing and tests the patient's ability to detect gaps in tonal and click stimuli. The test is available on CD. Seven sections include 2 practice sessions and stimuli of set frequency and duration, separated by varying inter-stimuli intervals.


Gap Detection Threshold in msec.


Keith RW: Random gap detection test (RGDT). St. Louis: Auditec, 2000.


Document last updated August 2017