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Analysis results. See also Refrences.
Behaviormetrika, Vol.42, No.2 (2015)
Proceedings of the Institute of Statistical Mathematics, 63, 2(2015)
For more information of each survey, please refer to each Survey Report from the below links.
* The Questionnaire of Japanese edition is printed in pp.5-30 of Summary Report.
* The Questionnaire of English edition is printed in pp.31-57 of Summary Report.
* The latest version of History of Items is printed in pp.81-102 of Summary Report.