Truthfulness judgments are negligibly affected by talker traits

This study examines whether social evaluation and intelligibility affect judgments of perceived credulity. Canadian English listeners (i) completed a speech-in-noise task, (ii) judged if sentences were true, and (iii) rated voices on social dimensions. A Bayesian analysis showed that neither social evaluation nor intelligibility substantially influenced perceived truthfulness. While recent work suggests talker accent may impact perceived credulity, the question is far from settled in the literature. We conclude that perceived credulity is negligibly affected by assessments of natively-accented voices.