The psychometric characteristics of the Kessler Psychological Distress Scale (K6) in help-seeking youth: What do you miss when using it as an outcome measure?

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dc.contributor.author Cotton, SM
dc.contributor.author Menssink, J
dc.contributor.author Filia, K
dc.contributor.author Rickwood, D
dc.contributor.author Hickie, IB
dc.contributor.author Hamilton, M
dc.contributor.author Hetrick, S
dc.contributor.author Parker, A
dc.contributor.author Herrman, H
dc.contributor.author McGorry, PD
dc.contributor.author Gao, C
dc.coverage.spatial Ireland
dc.date.accessioned 2021-10-05T05:30:35Z
dc.date.available 2021-10-05T05:30:35Z
dc.date.issued 2021-8-21
dc.identifier.issn 0165-1781
dc.identifier.uri https://hdl.handle.net/2292/56785
dc.description.abstract This is the first study to describe psychometric properties of the Kessler Psychological Distress Scale (K6) in a large cohort of help-seeking young people presenting to primary mental health care services. The aim was to determine whether the K6 was appropriate for monitoring outcomes in such settings. 1067 young people were recruited from Australian headspace services. We examined dimensionality of the K6, measurement invariance, and how the K6 correlated with the the Patient Health Questionnaire-9 (PHQ-9)and the Generalised Anxiety Disorder-7 Scale (GAD-7). Standardised Response Mean (SRM) and Cohen's d effect size (ES) were used to examine 3-month stability of the K6. The best-fitting model was a two-factor model: (i) nervous and restlessness; and (ii) hopeless, worthless, depressed and effort. Measurement non-invariance was observed for sex and age groups. K6 strongly correlated with the PHQ-9 and GAD-7. The K6 was less sensitive to change compared to these other two measures. There was some support for the K6 being a screener for young people presenting to primary care; however, there issues arise with its use as an outcome measure. These issues include measurement non-invariance, concern about the dimensionality and focus of items, and its sensitivity to change.
dc.language eng
dc.publisher Elsevier BV
dc.relation.ispartofseries Psychiatry Res
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm
dc.subject Adolescence
dc.subject Cohort studies
dc.subject Health Care Primary Health Care
dc.subject Outcome assessment
dc.subject Psychological distress
dc.subject Psychometrics
dc.subject 11 Medical and Health Sciences
dc.subject 17 Psychology and Cognitive Sciences
dc.title The psychometric characteristics of the Kessler Psychological Distress Scale (K6) in help-seeking youth: What do you miss when using it as an outcome measure?
dc.type Journal Article
dc.identifier.doi 10.1016/j.psychres.2021.114182
pubs.begin-page 114182
pubs.volume 305
dc.date.updated 2021-09-09T17:10:02Z
dc.rights.holder Copyright: The author en
pubs.author-url https://www.ncbi.nlm.nih.gov/pubmed/34455216
pubs.publication-status Published online
dc.rights.accessrights http://purl.org/eprint/accessRights/RetrictedAccess en
pubs.subtype Journal Article
pubs.elements-id 866002
dc.identifier.eissn 1872-7123
dc.identifier.pii S0165-1781(21)00478-9
pubs.number 114182


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