They most certainly can. See the series of papers by...
User mapsandclocks, in the Audiology! subreddit,
They most certainly can. See the series of papers by [Macrae](https://www.ncbi.nlm.nih.gov/pubmed/2046365) (1991, 1993, 1994…
Stability of Audiometric Thresholds for Children with Hearing Aids Applying the American Academy of Audiology Pediatric Amplification Guideline: Implications for Safety
Overview of attention for article published in Journal of the American Academy of Audiology, March 2016