Previous research found that introverts performed worse than extraverts on cognitive tasks in the presence of noise or music in a Western sample but not in an Asian sample. This is a cross-cultural part replication of these studies using a Western (British; N = 45) and Asian (Singaporean; N = 45) sample. Participants engaged in three cognitive tests in the presence of pop songs, background noise, and in silence. It was predicted that for British participants, introverts would perform worse than extraverts on all three tasks in the presence of background sounds, and performance would be worse in the presence of background sounds than in silence, but not for the Singaporean participants. The results did not show any performance differences between the background sound conditions for any of the tests across the two samples, nor any performance differences between extraverts and introverts across the background sound conditions, with three exceptions: extraversion for the British was a significant predictor of performance on the Raven’s test in the silence condition, extraversion was a significant predictor of performance for both groups on the mental arithmetic task in the silence condition, and extraversion was a significant predictor of performance for Singaporeans on the mental arithmetic task in the music condition.

先前的研究发现，在西方样本中，在有噪音或音乐的情况下，内向者在认知任务上的表现比外向者差，但在亚洲样本中则不然。这是这些研究的跨文化部分复制，使用西方（英国；N  = 45）和亚洲（新加坡；N = 45) 样本。参与者在流行歌曲、背景噪音和沉默中进行了三项认知测试。据预测，对于英国参与者，在有背景声音的情况下，内向者在所有三项任务中的表现都比外向者差，在有背景声音的情况下，表现会比沉默时差，但新加坡参与者则不然。结果没有显示两个样本的任何测试的背景声音条件之间的任何表现差异，也没有显示背景声音条件下外向和内向者之间的任何表现差异，只有三个例外：英国人的外向性是一个重要的预测因素在静音条件下 Raven 测试的表现，