The inconsistent and non-significant results in human early experience literature and suggestions of why results of early experience manipulations have not measured up to enthusiasm for this topic are summarized. Section headings are: the problem of subject selectivity; the problem of environmental specificity; the problem of stimulus specificity;…

The data reported in this small study confirm previous research indicating that early stimulation, though initially affecting human behavior, has little permanent effect upon later functioning. (Author/WY)

Following a review of research on the effects of early experience upon subsequent cognitive and intellectual development, an alternative Piagetian-based strategy for the study and evaluation of these concerns is presented. Using this paradigm, infants were observed naturalistically for one year. The observations were coded according to the four…

Illustrates the use of a Piagetian-influenced research strategy in overcoming existing methodological problems in human experience research and presents illustrative data on human early experience research which has so far yielded inconsistent data. (GO)