Goldfield B A, Reznick J S
Department of Psychology, Rhode Island College, Providence 02908, USA.
J Child Lang. 1996 Feb;23(1):241-6. doi: 10.1017/s0305000900010175.
We reply to Mervis & Bertrand's report of three children (aged 1;6-1;8 at the start of the study) who evidenced a 'late' vocabulary spurt. Differences in assessing productive vocabulary, and the questionable inference that size of the lexicon is a reliable indicator of the vocabulary spurt, make it inappropriate to compare these children to previous studies that directly measure change in rate of word learning. Further work using continuous records of lexical development and controls for repeated cognitive assessments is needed to test hypotheses about the spurt and related cognitive and linguistic achievements.
我们回应了默维斯和伯特兰关于三名儿童（研究开始时年龄为1岁6个月至1岁8个月）的报告，这些儿童表现出“后期”词汇激增。在评估产出性词汇方面存在差异，以及关于词汇量大小是词汇激增可靠指标的可疑推断，使得将这些儿童与之前直接测量单词学习速度变化的研究进行比较并不合适。需要进一步开展工作，使用词汇发展的连续记录并对重复的认知评估进行控制，以检验关于词汇激增以及相关认知和语言成就的假设。
