3V0205.1

3V0205.01 A Natural Experiment < from earlier title: "Rolling Over (earlier socialization)" Meeting Cousin Matthew. (8/15/78 ) Peggy rolled over today from back to belly, but the evidence is circumstantial. She had been eating a teething biscuit and was covered with glom from head to foot. I put her down on her back in the ...

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3V0204.2

3V0204.02 Robby, Miriam play with Peggy; object permanence data (8/14/78) The second group of interesting observations with the toy focus on my first observations of Peggy’s crawling. Gretchen has remarked on Peggy’s ‘falling sideways’ and thereby going forward a little over the past few days. Today;s behavior was a clear extension of what may have …

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3V0204.1

3V0204.01 Ring Tower Toy: beginning of “putting on” sequence (8/14/78) Peggy received a ring-tower toy as a present at her birth. She has not played with it before today (Note however that Peggy played with similar rings from a different set in the earliest videotape of her playing.) The toy looks like this: (diagram; rings …

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