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pro vyhledávání: '"Amy L. Whitcher"'
Autor:
Charles W. Snow, Amy L. Whitcher, Marsha Ironsmith, Jeffrey C. Johnson, G. Michael Poteat, Stephanie Mumford
Publikováno v:
Early Education & Development. 8:389-405
Behavioral observations and sociometric ratings were assessed in separate 3- and 4-year-old child care classes across a two year period. A cross sequential design included three cohorts. Cohort A was observed at age 4, Cohort B at ages 3 and 4 and Co