To test the validity of GTNI used in children. Methods: One hundred and thirty-three children were tested with Gong's Tests of Nonverbal Intelligence and C-WISC concurrently, and their results were compared. Results: The correlation coefficients between the total score of GTNI and the FIQ, PIQ and VIQ of C-WISC were 0.62, 0.64, and 0.50 respectively. Conclusion: GTNI was useful in testing intelligence of children...