SPATIAL LOCATION JUDGEMENTS BY RIGHT AND LEFT-HANDERS

An attempt was made to replicate the left-hand advantage found by Roy et Mackenzie (1978) for a bimanual thumb-positioning task. As in their experiment strongly right-handed and strongly left-handed male and female subjects took part. Their findings were not fully replicated. A weak left-hand advantage was found for only 1 of the 3 error measures used (constant error). Significant interactions of sex with handedness were found for absolute and constant error. The difficulty of replication and current findings are discussed in terms of possible variations in subject strategy which warrant further investigation.