Educability-and-Group-Differences-1973-by-Arthur-Robert-Jensen

316 Educability and Group Differences
What DeLemos found was that the part-Aboriginal children were
markedly advanced in the Piagetian measures as compared with
the full-Aborigines of the same ages. The differences were not
small and did not depend upon large samples for their high level
of statistical significance. They are remarkably large differences,
beyond anything that has ever been produced by direct training
on Piagetian tasks and concepts. The results for the six types of
Piagetian conservation tests used by DeLemos are shown in
Table 17.1. The results appear almost as if the admixture of
Table 17.1 Comparison of the number of part-Aboriginal and full-
Aboriginal children showing conservation*
Test
Full Abor.
TV= 38
Part Abor.
N = 34 x2 P
Quantity 4 18 15-21