Differences in Item Discrimination of the 25-Question Geriatric Locomotive Function Scale Between Younger and Middle-Aged Adults and Older Adults: An Analysis Using the Item Response Theory.

Shunsuke Yamashina; Kenta Hirohama; Junji Nishimoto; Ryo Tanaka

doi:10.1111/ggi.70357

February 1, 2026

Differences in Item Discrimination of the 25-Question Geriatric Locomotive Function Scale Between Younger and Middle-Aged Adults and Older Adults: An Analysis Using the Item Response Theory.

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Key Points

This study aims to analyze item discrimination of the Geriatric Locomotive Function Scale across age groups.
Utilized Item Response Theory to assess item responses across age groups.
Compared scores from younger and middle-aged adults to older adults.
Statistical validation of item patterns across different age categories.
Identified distinctive item patterns based on age among participants.
Support for developing age-specific assessment tools for locomotive syndrome.
Demonstrated the need for tailored screening methods for different age groups.

Implication

Analysis reveals age-related patterns in item discrimination, suggesting tools for locomotive syndrome screening.

Abstract

The Geriatric Locomotive Function Scale demonstrated statistically validated age-related item patterns. These findings support developing age-tailored short forms and adaptive screening tools for locomotive syndrome.

Discussion

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Cite This Study

Yamashina et al. (2026) studied this question.

synapsesocial.com/papers/698827f00fc35cd7a8846f0a https://doi.org/10.1111/ggi.70357

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Differences in Item Discrimination of the 25-Question Geriatric Locomotive Function Scale Between Younger and Middle-Aged Adults and Older Adults: An Analysis Using the Item Response Theory.

Key Points

Implication

Abstract

Discussion

Cite This Study

Differences in Item Discrimination of the 25-Question Geriatric Locomotive Function Scale Between Younger and Middle-Aged Adults and Older Adults: An Analysis Using the Item Response Theory.

Key Points

Implication

Abstract

Discussion

Cite This Study

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