We produced the group version of Stroop and reverse-Stroop color and word test through the use of a matching method. The test consisted of two control tasks, one Stroop task and a reverse-Stroop task. In four experiments we examined the validity and reliability of the test as follows. Experiment 1 showed the significant amount of Stroop interference similar to traditional oral naming method Experiments 2, 3, 4 showed neither order effect of tasks nor practice effect in the Stroop and the reverse-Stroop tasks, together with the high test-retest reliability (r=.695-824), respectively. It is believed that this test might be a valuable tool to the researcher as a measure of individual difference in human information processing.