The D-48 and D-70 (Dominoes) Tests, which are parallel forms of a non-verbal cross-cultural test, were administered to 31 high school freshmen. A correlation of .88 was obtained between the two forms of the test; this value is higher than prior ones. Other results indicated equal means and standard deviations of the two tests. Internal consistency reliability of the two tests was considered adequate. There was no apparent relationship between age and race and the D-48 or D-70. The summary of results supported the parallelism of the two forms of the test.
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