Validation and optimization of the Japanese version of the adult executive functioning inventory

Abstract

Executive function (EF) is an umbrella term for various higher-order cognitive processes. Among the test batteries for the EF, the Adult Executive Functioning Inventory (ADEXI) is prominent due to several advantages which are being brief by focusing on the core concept of EF and does not include hard-to-understand general expressions and/or things that are connected but not directly linked to EFs. The Japanese version of ADEXI (J-ADEXI) was created through the regular translation procedure and tested via confirmatory factor analysis (CFA). Although the original model fit well, we conducted a Mokken scaling analysis (MSA), aiming to reduce the number of items of J-ADEXI, and created new model in which two of the items were removed. The J-ADEXI could briefly assess the EF with good psychometric properties and this study may also provide a clue towards optimization of the original and/or other language versions of ADEXI.

Competing Interest Statement

The authors have declared no competing interest.

Funding Statement

This study was supported by grants from the Japan Society for the Promotion of Science (KAKENHI) (grant numbers: 19K14481 and 19H00631) to TK.

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Ethical review board of Tokai University

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Data Availability

The data underlying the results presented in the study are only available from the corresponding author upon reasonable request because of the data collection agencies' privacy policy.

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