marginally significantp = 0.08
A marginally significant difference was observed at 6 months [χ 2 (1) = 3.10, p = 0.08], and no significant difference was observed in the other two age groups [10-month-olds: χ 2 (1) = 0.10, p = 0.80; adults: χ 2 (1) = 2.10, p = 0.20], suggesting that the detection of vowel or consonant change was affected similarly by vocoding in the three groups.