論文が掲載されました
- yukaoz
- 2月19日
- 読了時間: 2分
Development and Validation of the Delaying Gratification Inventory in Japanese (DGI‐J)
Takayuki Goto* (Osaka University)
Kaichi Yanaoka (Osaka Kyoiku University)
Yuka Ozaki (Toyo University)
Michael Hoerger (Tulane University)
Japanese Psychological Research
First published: 19 February 2025
Abstract
We often face situations requiring us to exert self-control, wherein we set goals and invest plenty of effort in achieving them, but are also disturbed by urges to give in to temptations. Since self-control is associated with outcomes across various domains, it is important to assess individual domain-specific differences in self-control to further understand how it develops and contributes to successful outcomes. The present study aimed to develop and validate the Japanese version of the Delaying Gratification Inventory, a well-developed measure for assessing one's ability to delay gratification in five domains: food, physical pleasures, social interactions, money, and achievement. We created the Delaying Gratification Inventory in Japanese (DGI-J) using back translation. We conducted surveys to test its validity using two discrete samples: crowd-workers and university students. Our results showed that the DGI-J is a valid measure for assessing self-control in the abovementioned domains, except for the internal consistency for the Physical subscale. We also created a 10-item short form of the DGI-J from an item-response theory perspective and tested its validity. We discuss how the DGI-J can contribute to the literature on self-control.
セルフコントロールの領域別の個人差を測定する成人向け指標 Delaying Gratification Inventory について,日本語版DGI-Jの作成および妥当性検証を行った研究です。
後藤崇志先生(大阪大学)を中心として,柳岡開地先生(大阪教育大学),さらにオリジナルの英語版を開発された Michael Hoerger 先生も共同研究者にお迎えし,このプロジェクトを進めてきました。
このプロジェクトに,優れた研究者の方々といっしょに取り組んだことで,私自身多くのことを学ぶことができました。共同研究者のみなさまに感謝申し上げます。
そして今後,DGI-J が日本におけるセルフコントロール研究の発展に役立ててもらえることを期待しています。
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