Cameron J, Livson N, Bayley N
Science. 1967 Jul 21;157(3786):331-3. doi: 10.1126/science.157.3786.331.
Correlations between infant development tests and later intelligence have been found previously to be very low. Through cluster analysis, six clusters of items were extracted from Bayley's California First Year Mental Scale. One item cluster composed principally of vocalizations did significantly correlate with girls' later intelligence, increasingly so with age, and more highly with verbal than performance scores.
此前已发现婴儿发育测试与后期智力之间的相关性非常低。通过聚类分析,从贝利的《加利福尼亚第一年智力量表》中提取了六组项目。一个主要由发声组成的项目组确实与女孩后期的智力显著相关,且随着年龄增长相关性越来越高,与言语分数的相关性高于操作分数。