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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: Dev Psychol. 2015 Sep 21;51(11):1553–1563. doi: 10.1037/dev0000043

Table 1.

Correlations among Variables of Study 1

Variable 1. Persistence at play 2. Infant Δ anger to goal blockage 3. Infant temperament 4. Maternal vocalizations to infant vocalizations
1
2 .33*
3 −.02 .15
4 −.21 −.27* −.09

Note. N = 59.

*

p < .05.