Question: According to Souza (2006) [Issues related to hearing aid amplification of older adults]: Gatehouse and colleagues found that Group of answer choices older listeners preferred linear amplification to slow acting WDRC amplification. fast-acting WDRC was better than slow-acting WDRC for loudness comfort. at least three compression channels were needed to provide adequate speech audibility. older listeners with cognitive deficits recognized less speech with fast-acting than with slow-acting WDRC.