Evidence map›Paper›PMID 28025750›Full record

ArticleJournal of occupational rehabilitation2017

Validity and Reliability of the 8-Item Work Limitations Questionnaire.

Timothy J Walker, Jessica M Tullar, Pamela M Diamond, Harold W Kohl, Benjamin C Amick

Abstract readValidation Study
In one paragraph

Article in Journal of occupational rehabilitation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  11. Supporting workers with mental health problems at work: challenges and avenues.Scandinavian journal of work, environment & health · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Timothy J WalkerDepartment of Health Promotion and Behavioral Sciences, School of Public Health, The University of Texas Health Science Center at Houston, 7000 Fannin Street, Houston, TX, 77030, USA. timothy.j.walker@uth.tmc.edu.ORCID http://orcid.org/0000-0003-3171-5431
Jessica M TullarDepartment of Management, Policy and Community Health, School of Public Health, The University of Texas Health Science Center at Houston, 1200 Pressler Street, Houston, TX, 77030, USA.
Pamela M DiamondDepartment of Health Promotion and Behavioral Sciences, School of Public Health, The University of Texas Health Science Center at Houston, 7000 Fannin Street, Houston, TX, 77030, USA.
Harold W KohlDepartment of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Austin, TX, USA.
Benjamin C AmickDepartment of Health Policy and Management, Robert Stempel College of Public Health and Social Work, Florida International University, AHC5 4534 11200 SW 8th Street, Miami, FL, 33199, USA.

Funding

BEHAVIORAL SCIENCE EDUCATION--CANCER PREVENTION/CONTROLR25CA057712 · NCI · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI MULLEN, PATRICIA DOLAN · 1992 to 2017
$8.6M
NCI NIH HHS R25 CA057712University of Texas Health Science Center at Houston School of Public Health Cancer Education and Career Development Program - National Cancer Institute/NIH Grant R25 CA57712
6 · The paper itself

Abstract

Purpose To evaluate factorial validity, scale reliability, test-retest reliability, convergent validity, and discriminant validity of the 8-item Work Limitations Questionnaire (WLQ) among employees from a public university system. Methods A secondary analysis using de-identified data from employees who completed an annual Health Assessment between the years 2009-2015 tested research aims. Confirmatory factor analysis (CFA) (n = 10,165) tested the latent structure of the 8-item WLQ. Scale reliability was determined using a CFA-based approach while test-retest reliability was determined using the intraclass correlation coefficient. Convergent/discriminant validity was tested by evaluating relations between the 8-item WLQ with health/performance variables for convergent validity (health-related work performance, number of chronic conditions, and general health) and demographic variables for discriminant validity (gender and institution type). Results A 1-factor model with three correlated residuals demonstrated excellent model fit (CFI = 0.99, TLI = 0.99, RMSEA = 0.03, and SRMR = 0.01). The scale reliability was acceptable (0.69, 95% CI 0.68-0.70) and the test-retest reliability was very good (ICC = 0.78). Low-to-moderate associations were observed between the 8-item WLQ and the health/performance variables while weak associations were observed between the demographic variables. Conclusions The 8-item WLQ demonstrated sufficient reliability and validity among employees from a public university system. Results suggest the 8-item WLQ is a usable alternative for studies when the more comprehensive 25-item WLQ is not available.

Indexed as

Health StatusWork Capacity EvaluationAdultChronic DiseaseFactor Analysis, StatisticalFemaleHumansMaleMiddle AgedOccupational HealthReproducibility of ResultsRetrospective StudiesSurveys and QuestionnairesWork PerformanceEmployee healthPresenteeismProductivityWorkWork performance

Identifiers

PMID28025750
PMCPMC5484749

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.