Measuring depression and anxiety in autistic college students: A psychometric evaluation of the PHQ-9 and GAD-7

Author:

Robeson Mackenzie1ORCID,Brasil Kyle M1,Adams Haley C1ORCID,Zlomke Kimberly R1

Affiliation:

1. University of South Alabama, USA

Abstract

Anxiety, depression, and suicidality are major concerns among college students, though less is known about these constructs in autistic college students. Given the rising number of autistic individuals entering post-secondary education, adequate measurement and diagnosis of anxiety, depression, and suicidality is necessary to provide clinical care to this population. While the Generalized Anxiety Disorder-7 (GAD-7) and Patient Health Questionnaire-9 (PHQ-9) are commonly used in university settings, these instruments have not been psychometrically evaluated in autistic college students. The current study examines the differential psychometric properties of the GAD-7 and PHQ-9 utilizing invariance testing via structural equation modeling in a sample of self-identified autistic ( n = 477) and non-autistic ( n = 429) university students. Results showed that although the GAD-7 is invariant, the PHQ-9 was mostly invariant, with one item displaying non-invariance. Specifically, the PHQ-9 item assessing suicidality was found to be non-invariant at the metric level, indicating that autistic and non-autistic college students interpret this question differently. Future investigators should continue to assess the appropriateness of using common screening measures, originally created for non-autistic people, in autistic populations. Lay abstract Anxiety, depression, and suicidality are major concerns among college students, though less is known about these constructs in autistic college students. Given the rising number of autistic individuals entering college, adequate screening and diagnosis of mental health difficulties is necessary to provide care to this population. For example, despite widespread usage of the Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder-7 (GAD-7), it is unknown if the two instruments accurately measure depression and anxiety the same way between non-autistic and autistic individuals. Thus, the current study was the first to examine how these instruments measure depression and anxiety symptoms in autistic versus non-autistic college students. Utilizing tests of construct measurement in a sample of autistic ( n = 477) and non-autistic ( n = 429) university students aged 18–29, results showed that while the GAD-7 and PHQ-9 appear to be accurately capturing anxiety and depression in autistic college students, the PHQ-9 item assessing suicidality was found to be measuring different things. This indicates that autistic college students are not interpreting this question the way non-autistic students are, and thus, the measure is failing to capture suicidality in autistic people. Future investigators should continue to assess the appropriateness of using common screening measures, originally created by non-autistic people, in autistic populations.

Publisher

SAGE Publications

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3