Development of the Japanese version of the Iowa Gambling Task for PC and its equivalence to the English version

This study aimed to develop a Japanese version of the Iowa Gambling Task (IGT) using Psychology Experiment Building Language based on English version. Additionally, we tested equivalence these versions biological test. We randomly assigned 63 undergraduate and graduate students from several universities our parallel design experiment. evaluated by determining differences between logs number cards chosen advantageous decks in five blocks. defined an margin as ± 30% (log (0.70 = -0.36, log (1/0.70) 0.36, for log-transformation). All two-sided 90% family-wise confidence intervals blocks were within margin. Our results confirmed IGT. The can be used with compiled executables source code without charge. Future comparative studies should evaluate IGT samples or Japan other countries.