Effect of information feedback on matrices learning for differing socioeconomic levels.

Patterns of early cognitive development among boys in four subcultural groups.

“…In general, however, it has been found that all groups improve in performance, and again, the typically reported social class and race differences have failed to appear as regularly as they do with the RCPM. In the one study in which it was reported (Turner, 1975), little relationship between the matrices training variables and measures of scholastic achievement was found (two significant correlations were reported).…”

“…In general, abilities were successfully trained when older, white middle-class children were involved (Jacobs & Vandeventer, 1968Parker, Sperr, & Rieff, 1972;Jacobs & Vandeventer, Note 2). When younger and lower-class white (Turner, 1975;Turner, Hall, & Grimmett, 1973;Turner & Hall, Note 3) or lower-class black children (Guinaugh, 1971) were trained, equivocal results have been reported. In general, however, it has been found that all groups improve in performance, and again, the typically reported social class and race differences have failed to appear as regularly as they do with the RCPM.…”