Psychometric Properties of MyCog 2.0: A Human-Centered Cognitive Screening Tool for Older Adults

IF 2.4 3区医学 Q2 PSYCHIATRY

International Journal of Methods in Psychiatric Research Pub Date : 2025-04-07 DOI:10.1002/mpr.70020

Stephanie Ruth Young, Yusuke Shono, Katherina K. Hauner, Jiwon Kim, Elizabeth McManus Dworak, Greg Joseph Byrne, Callie Madison Jones, Julia Noelani Yoshino Benavente, Michael S. Wolf, Cindy J. Nowinski

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引用次数: 0

Abstract

Objectives

Self-administered, user-friendly apps that can detect initial symptoms of cognitive impairment have enormous potential to improve early detection of cognitive decline. We examine the psychometric properties of the redesigned version of MyCog, MyCog 2.0, an app-based tool for older adults that assesses executive function and episodic memory. MyCog 2.0 aims to improve usability while maintaining the psychometric validity demonstrated in the original version.

Methods

Feedback from clinicians and patients on MyCog was gathered to inform the human-centered design improvements of MyCog 2.0. To assess the psychometric properties of the improved tool, data from a community sample (n = 200; mean age = 73 years) who had completed MyCog 2.0 were compared to an age-matched sample who had completed the original MyCog. Internal consistency and construct validity were evaluated via confirmatory factor analysis. Bayesian differential item functioning was employed to evaluate the evidence for equivalence of MyCog and MyCog 2.0.

Results

Internal consistency was high for executive function and episodic memory tests (ω_t = 0.84). A two-factor model showed excellent fit, demonstrating that tests measured two related yet distinct constructs, episodic memory and executive functioning, as expected. Differential item functioning between the two test versions was not observed for episodic memory performance or executive functioning accuracy; however, response time on five executive function items was found to differ across versions.

Conclusions

Findings support MyCog 2.0 as the first reliable self-administered cognitive screener designed specifically for ease of use among older adults. Findings support the internal consistency and construct validity of MyCog 2.0 and provide a foundation for the forthcoming clinical validation studies.

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MyCog 2.0的心理测量特性：老年人以人为中心的认知筛选工具

自我管理、用户友好的应用程序可以检测认知障碍的初始症状，在改善认知能力下降的早期检测方面具有巨大的潜力。我们研究了重新设计版本的MyCog的心理测量特性，MyCog 2.0是一种基于应用程序的老年人执行功能和情景记忆评估工具。myug 2.0旨在提高可用性，同时保持原始版本中所展示的心理测量效度。方法收集临床医生和患者对MyCog的反馈信息，对MyCog 2.0进行人性化设计改进。为了评估改进后的工具的心理测量特性，数据来自社区样本(n = 200；平均年龄= 73岁)完成了MyCog 2.0与年龄匹配的完成了原始MyCog的样本进行比较。通过验证性因子分析评估内部一致性和结构效度。采用贝叶斯差分项目函数对MyCog和MyCog 2.0的等效性证据进行评价。结果执行功能和情景记忆的内部一致性较高（ωt = 0.84）。一个双因素模型显示了极好的拟合，表明测试测量了两个相关但不同的结构，情景记忆和执行功能，正如预期的那样。在情景记忆表现和执行功能准确性方面，没有观察到两个测试版本的差异项目功能；然而，五个执行功能项目的反应时间在不同的版本中是不同的。结论：研究结果支持MyCog 2.0是第一个可靠的自我给药认知筛查，专为方便老年人使用而设计。研究结果支持了MyCog 2.0的内部一致性和结构效度，并为即将进行的临床验证研究提供了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Methods in Psychiatric Research 医学-精神病学

CiteScore

5.20

自引率

6.50%

发文量

审稿时长

>12 weeks

期刊介绍： The International Journal of Methods in Psychiatric Research (MPR) publishes high-standard original research of a technical, methodological, experimental and clinical nature, contributing to the theory, methodology, practice and evaluation of mental and behavioural disorders. The journal targets in particular detailed methodological and design papers from major national and international multicentre studies. There is a close working relationship with the US National Institute of Mental Health, the World Health Organisation (WHO) Diagnostic Instruments Committees, as well as several other European and international organisations. MPR aims to publish rapidly articles of highest methodological quality in such areas as epidemiology, biostatistics, generics, psychopharmacology, psychology and the neurosciences. Articles informing about innovative and critical methodological, statistical and clinical issues, including nosology, can be submitted as regular papers and brief reports. Reviews are only occasionally accepted. MPR seeks to monitor, discuss, influence and improve the standards of mental health and behavioral neuroscience research by providing a platform for rapid publication of outstanding contributions. As a quarterly journal MPR is a major source of information and ideas and is an important medium for students, clinicians and researchers in psychiatry, clinical psychology, epidemiology and the allied disciplines in the mental health field.