The recordings were only played once for each rating. After the listeners finished doing the ratings of comprehensibility and accentedness they were asked to listen to the whole sixteen sentences one more time and provide global comprehensibility and accentedness judgement ratings. Each listener gave one score each for global comprehensibility and global accentedness based on a similar nine-point Likert scale (1 = easy to understand, 9 = hard to understand; and 1 = has no accent, 9 = has a strong accent).