As in many areas of science, infant research suffers from low power. The problem is further compounded in infant research because of the difficulty in recruiting and testing large numbers of infant participants. Researchers have been searching for a solution and, as illustrated by this special section, have been focused on getting the most out of infant data. We illustrate one solution by showing how we can increase power in visual preference tasks by increasing the amount of data obtained from each infant. We discuss issues of power and present work examining how, under some circumstances, power is increased by increasing the precision of measurement. We report the results of a series of simulations based on a sample of visual preference task data collected from three infant laboratories showing how more powerful research designs can be achieved by including more trials per infant. Implications for infant procedures in general are discussed.

中文翻译：

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婴儿研究中的可靠数据和力量：视觉偏好程序中婴儿数量和试验次数影响的案例研究。

与许多科学领域一样，婴儿研究也受到低功率的影响。由于难以招募和测试大量婴儿参与者，婴儿研究中的问题更加复杂。研究人员一直在寻找解决方案，正如本节特别说明的那样，他们一直专注于充分利用婴儿数据。我们通过展示如何通过增加从每个婴儿获得的数据量来提高视觉偏好任务的能力来说明一种解决方案。我们讨论了功率问题并研究了在某些情况下如何通过提高测量精度来增加功率。我们根据从三个婴儿实验室收集的视觉偏好任务数据样本报告了一系列模拟的结果，展示了如何通过对每个婴儿进行更多试验来实现更强大的研究设计。讨论了对婴儿手术的一般意义。