An emotional functioning item bank of 24 items for computerized adaptive testing (CAT) was established

Petersen, Morten Aa.; Gamper, Eva‐Maria; Costantini, Anna; Giesinger, Johannes; Holzner, Bernhard; Johnson, Colin A.; Sztankay, Monika; Young, Teresa; Grøenvold, Mogens

doi:10.1016/j.jclinepi.2015.09.002

Cited by 19 publications

(39 citation statements)

References 32 publications

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“…The results of this study are in line with findings from prior investigations of item bank performance, most notably and recently from the PROMIS group, insofar as CAT produced measurement estimates that were more precise, efficient, and flexible than paper-based tests for other constructs including fatigue and functional status (eg, [ 61 - 63 ]). To our knowledge, this study represents the first time that simulations of generic QoL item banks have been tested in this manner, though a recent study has developed an item bank suitable for assessing emotional functioning in cancer [ 64 ].…”

Section: Discussionmentioning

confidence: 99%

Electronic Quality of Life Assessment Using Computer-Adaptive Testing

Gibbons¹,

Bower²,

Lovell³

et al. 2016

J Med Internet Res

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BackgroundQuality of life (QoL) questionnaires are desirable for clinical practice but can be time-consuming to administer and interpret, making their widespread adoption difficult.ObjectiveOur aim was to assess the performance of the World Health Organization Quality of Life (WHOQOL)-100 questionnaire as four item banks to facilitate adaptive testing using simulated computer adaptive tests (CATs) for physical, psychological, social, and environmental QoL.MethodsWe used data from the UK WHOQOL-100 questionnaire (N=320) to calibrate item banks using item response theory, which included psychometric assessments of differential item functioning, local dependency, unidimensionality, and reliability. We simulated CATs to assess the number of items administered before prespecified levels of reliability was met.ResultsThe item banks (40 items) all displayed good model fit (P>.01) and were unidimensional (fewer than 5% of t tests significant), reliable (Person Separation Index>.70), and free from differential item functioning (no significant analysis of variance interaction) or local dependency (residual correlations < +.20). When matched for reliability, the item banks were between 45% and 75% shorter than paper-based WHOQOL measures. Across the four domains, a high standard of reliability (alpha>.90) could be gained with a median of 9 items.ConclusionsUsing CAT, simulated assessments were as reliable as paper-based forms of the WHOQOL with a fraction of the number of items. These properties suggest that these item banks are suitable for computerized adaptive assessment. These item banks have the potential for international development using existing alternative language versions of the WHOQOL items.

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Section: Discussionmentioning

confidence: 99%

Electronic Quality of Life Assessment Using Computer-Adaptive Testing

Gibbons¹,

Bower²,

Lovell³

et al. 2016

J Med Internet Res

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“…The methods used are in accordance with the general approach used for psychometric analyses of item banks for CAT, as previously reported for other EORTC QLQ-C30 scales [ 9 , 11 – 14 ].…”

Section: Methodsmentioning

confidence: 99%

Psychometric evaluation of an item bank for computerized adaptive testing of the EORTC QLQ-C30 cognitive functioning dimension in cancer patients

et al. 2017

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BackgroundThe European Organisation of Research and Treatment of Cancer (EORTC) Quality of Life Group is developing computerized adaptive testing (CAT) versions of all EORTC Quality of Life Questionnaire (QLQ-C30) scales with the aim to enhance measurement precision. Here we present the results on the field-testing and psychometric evaluation of the item bank for cognitive functioning (CF).MethodsIn previous phases (I–III), 44 candidate items were developed measuring CF in cancer patients. In phase IV, these items were psychometrically evaluated in a large sample of international cancer patients. This evaluation included an assessment of dimensionality, fit to the item response theory (IRT) model, differential item functioning (DIF), and measurement properties.ResultsA total of 1030 cancer patients completed the 44 candidate items on CF. Of these, 34 items could be included in a unidimensional IRT model, showing an acceptable fit. Although several items showed DIF, these had a negligible impact on CF estimation. Measurement precision of the item bank was much higher than the two original QLQ-C30 CF items alone, across the whole continuum. Moreover, CAT measurement may on average reduce study sample sizes with about 35–40% compared to the original QLQ-C30 CF scale, without loss of power.ConclusionA CF item bank for CAT measurement consisting of 34 items was established, applicable to various cancer patients across countries. This CAT measurement system will facilitate precise and efficient assessment of HRQOL of cancer patients, without loss of comparability of results.Electronic supplementary materialThe online version of this article (doi:10.1007/s11136-017-1648-8) contains supplementary material, which is available to authorized users.

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“…Next, the possible effect of DIF findings on the estimation of insomnia was evaluated (Hart et al 2009), by comparing scores obtained with a model accounting for DIF with the scores obtained with the model from the previous step. DIF was only considered problematic if the estimates of these two models differed more than the median standard error of the insomnia estimates (Petersen et al 2011(Petersen et al , 2013b(Petersen et al , 2016aHart et al 2009).…”

Section: Test For Differential Item Functioningmentioning

confidence: 99%

“…The EORTC Quality of Life Group (QLG) has an on-going, large scale international project to develop CAT versions of all EORTC QLQ-C30 scales/items (Dirven et al 2017;Gamper et al 2014Gamper et al , 2016Giesinger et al 2011;Petersen et al 2011Petersen et al , 2013aPetersen et al , b, 2016aPetersen et al , 2018aThamsborg et al 2015), and for several scales higher measurement precision and reduced response burden has been achieved (Dirven et al 2017;Gamper et al 2016;Petersen et al 2011Petersen et al , 2013bPetersen et al , 2016a. Whether this holds true for other scales remains to be determined.…”

Section: Introductionmentioning

confidence: 99%

Development and Psychometric Evaluation of an Item Bank for Computerized Adaptive Testing of the EORTC Insomnia Dimension in Cancer Patients (EORTC CAT-SL)

Dirven

Petersen

Aaronson

et al. 2019

Applied Research Quality Life

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To further advance assessment of patient-reported outcomes, the European Organisation of Research and Treatment of Cancer (EORTC) Quality of Life Group has developed computerized adaptive test (CAT) versions of all EORTC Quality of Life Core Questionnaire (QLQ-C30) scales/items. The aim of this study was to develop and evaluate an item bank for CAT measurement of insomnia (CAT-SL). In line with the EORTC guidelines, the developmental process comprised four phases: (I) defining the concept insomnia and literature search, (II) selection and formulation of new items, (III) pre-testing and (IV) field-testing, including psychometric analyses of the final item bank. In phase I, the literature search identified 155 items that were compatible with our conceptualisation of insomnia, including both quantity and quality of sleep. In phase II, following a multistep-approach, this number was reduced to 15 candidate items. Pre-testing of these items in cancer patients (phase III) resulted in an item list of 14 items, which were field-tested among 1094 patients in phase IV. Psychometric evaluations showed that eight items could be retained in a unidimensional model. The final item bank yielded greater measurement precision than the original QLQ-C30 insomnia item. It was estimated that administering two or more items from the insomnia item bank with CAT results in a saving in sample size between approximately 15-25%. The 8-item EORTC CAT-SL item bank facilitates precise and efficient measurement of insomnia as part of the EORTC CAT system of health-related quality life assessment in both clinical research and practice.

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An emotional functioning item bank of 24 items for computerized adaptive testing (CAT) was established

Cited by 19 publications

References 32 publications

Electronic Quality of Life Assessment Using Computer-Adaptive Testing

Electronic Quality of Life Assessment Using Computer-Adaptive Testing

Psychometric evaluation of an item bank for computerized adaptive testing of the EORTC QLQ-C30 cognitive functioning dimension in cancer patients

Development and Psychometric Evaluation of an Item Bank for Computerized Adaptive Testing of the EORTC Insomnia Dimension in Cancer Patients (EORTC CAT-SL)

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