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30 DECILES 62 SEGUIN FORM 66 DECILES AGE IN MONTHS answer attempt baby Baby talk ball birdie button strip buttonhole chair child touched child was given child's attention children were successful correct response correctly placed credited decile table DECILES 90 doggie doubtful Educative Games effort failed False moves Foal test hole kitty large cards Little Black Sambo LITTLE PINK TOWER MANIKIN Mare and Foal Merrill-Palmer School MONTHS 18 MONTHS 30 NEST OF CUBES number of children nursery school object older children parents Peg Board pencil PERFORMANCE TESTS PICTURE PUZZLE place all sixteen question recorded refusals repeated repetition reply score second trial Seconds AGE SEGUIN FORM BOARD self-corrective shown sixteen cubes small cards stop watch tantrum task test material third trial thirty months thirty-six months three trials total number trials 1 trial twenty-four months group watch was started Word Groups young children younger