The effect of demonstration of tool's function on 16-month olds' tool use learning.

Comparison of the means of infants' three score types obtained on the Rake Task in the Play Alone + No Demo Condition with score means in the other three conditions where infants saw a demonstration of the rake's function (Mimicry + Demo, Non-Mimicry + Demo and Play Alone + Demo). Bold numbers indicate significant differences between means (pThe effect of demonstration of tool's function on 16-month olds' tool use learning.