“…Success in decentering has been shown to correlate positively with age (Elkind & Scott, 1962;Houssiadas & Brown, 1967;Stuart, 1967;Sullivan & Hunt, 1967) and level of intelligence (Elkind & Scott, 1962;Stuart, 1967;Sullivan & Hunt, 1967). Other positive relationships with decentering ability have been found with the ability to make mature moral and causal judgments (Stuart, 1967), with social class (Sullivan & Hunt, 1967), and with categorization ability (Weinberg, 1963). Houssiadas and Brown (1967) found that the developmental sequence for centering-decentering found in normal children also exists in mentally retarded children.…”