Forty blind and 40 sighted children were compared on a Tactual Performance Test (TPT). There were no differences between the blind and sighted groups. Those with no vision or light perception only were superior to the sighted on one TPT variable and superior to those with guiding vision on two TPT variables. IQ was positively correlated with TPT scores for the no vision group and with one TPT variable for those with guiding vision. The totally blind children had a higher mean IQ score than the sighted or those with guiding vision. The implications of these differences are discussed.
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