RISP: Reliability in infant speech perception

A long line of research investigates how infants learn the sounds and words in their ambient language over the first year of life, through behavioral tasks involving discrimination and recognition. More recently, individual performance in such tasks has been used to predict later language development. Does this mean that dependent measures in such tasks are reliable and can stably measure speech perception skills over short time spans? We addressed this question in 12 experiments (with a total of 409 paired data points), in which infants were tested in a given task, and retested within 0-18 days. Tasks ranged from vowel and consonant discrimination to recognition of phrasal units. Results reveal that great variation in reliability. In these supplementary materials, we provide further information on the studies, further analyses, and the raw data.

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众多研究深入探讨了婴儿在其生命的第一年中，如何通过涉及辨别与识别的行为任务，在其周围语言中习得声音和词汇。近年来，此类任务中的个体表现已被用于预测后续的语言发展。这是否意味着此类任务中的依赖性测量指标是可靠的，并能稳定地在短时间内衡量语音感知技能？我们在12项实验（共计409个配对数据点）中探讨了这一问题，在这些实验中，婴儿在特定任务中进行测试，并在0-18天内进行重测。任务范围从元音和辅音的辨别到短语单位的识别。结果显示，可靠性存在显著差异。在这些补充材料中，我们提供了关于研究、进一步分析和原始数据的更多信息。详情请见维基百科。