Brainstem Evoked Potentials – BSEP, Auditory Brain Responses - ABR, Middle Latency Responses - MLR, Late Latency Responses - LLR, Real Ear to Coupler Difference - RECD, Real Ear Insertion Gain - REIG, Real Ear to Dial Difference - REDD, International Speech Test Signal - ISTS,  Ecological Momentary Assessment - EMA, Most Comfortable Level - MCL, Loudness Discomfort Level - LDL, Uncomfortable Level - UCL, Pure Tone Audiometry - PTA, Speech Intelligibility Index - SII, Articulation Index - AI, Frequency Following Responses - FFR, Auditory Event Related Potentials  - Auditory ERP, Electrocochleography – EcochG, Mismatch negativity - MMN, Peak 300 – P-300, Acoustic Change Complex - ACC, Cochlear Microphonic - CM, complex Auditory Brain Responses - cABR, Speech Reception Threshold - SRT, Coordinating Orientation Response - COR, Abbreviated Profile of Hearing Aid Benefit – ABHAB, Signal-to-Noise Ratio - SNR, Central Auditory Processing Disorders – CAPD, National Acoustic Laboratory – NAL, Desired Sensation Level – DSL, Occluded Response – OR, Compression Ratio – CR, Evidence Base Practice – EPB, Independent Hearing Aid Fitting Forum – IHAFF, Connected Speech Test – CST, Long Term Average Speech Spectrum – LTASS, Preferred Listening Level – PLL,