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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: Infant Behav Dev. 2015 Mar 11;39:67–80. doi: 10.1016/j.infbeh.2015.02.003
Infant’s Age in Months 8 9 10 11 12 13 14
p 0.00* 0.00* 0.00* 0.00* 0.00* 0.00* 0.00*
n 281 283 287 292 291 289 279
df 2 2 2 2 2 2 2
Pearson Chi-Square 57.37 49.15 39.78 35.20 42.49 36.40 30.24
Note.
*
Significant at the corrected Bonferroni multiple comparisons level of .007.