Fig. 2.

Sentence intelligibility in young and older adults. Note. a Young and older adults’ keyword intelligibility for each mask type by noise level. Black dots indicate the mean accuracy in each condition, and colored dots indicate means for individual participants. b Line graphs showing keyword intelligibility by noise level for each mask type in young and older adults. Error bars indicate ± two standard errors. Note that the bottom panel conveys the same information as the top panel but more clearly displays how noise affects intelligibility across mask types