Big Changes in Achievement Between Cohorts: A True Reflection of Educational Improvement or Is the Test to Blame?

Combrinck, Celeste

doi:10.1007/978-981-15-1800-3_10

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…After consulting subject matter experts and the body of scholarship, we concluded that the ADHD constructs function differently for boys and girls, and for respective language groups (Millenet et al, 2018). Measurement invariance does not hold if the construct is not understood in the same way for different groups within a population (Combrinck, 2020). Conducting separate analyses for gender and language of learning improved the models and warrants further qualitative research.…”

Section: Construct Validity: Rasch Analysismentioning

confidence: 95%

Validation of the ADHD-Behaviour Rating Scale for early childhood teacher use in South African classrooms

Combrinck

Preez

2021

Journal of Psychology in Africa

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We tested the construct validity of scores from the ADHD Behaviour-Rating Scale (ADHD-BRS: Merrell & Tymms. 2001) within South African early childhood classrooms in three of the eleven official languages, English, Afrikaans and isiXhosa. In-service teachers (n=109) from 112 schools in the Western Cape Province completed the ADHD-BRS for 1771 Grade 1 children (girls = 50%, median age = 7.39 years). Rasch analysis and Confirmatory factor analysis (CFA) results indicated evidence for the validity of the ADHD-BRS scores.There was evidence that the language of learning and teaching (LoLT) groups differed enough to require separate analysis.Regardless of language or gender, higher scores on inattention predicted lower reading and numeracy scores across groups.

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Section: Construct Validity: Rasch Analysismentioning

confidence: 95%

Validation of the ADHD-Behaviour Rating Scale for early childhood teacher use in South African classrooms

Combrinck

Preez

2021

Journal of Psychology in Africa

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“…This is patently untrue 15 16 . The fact is that the EQ-5D-5L and other multiattribute generic preference instruments fail to meet Rasch measurement standards for reliability, invariance, additivity of the latent trait, unidimensionality and order, let alone the composite nature of the use of health states 17 18 .…”

Section: The Ordinal Menqolmentioning

confidence: 99%

Post-Menopausal Quality of Life Claims: Overlooking the Requirements of Normal Science and Fundamental Measurement in ICER’S Cost-Effectiveness Assessment of Fezolinetant for Moderate to Severe Vasomotor Symptoms

Langley

2023

Innov Pharm

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One of the signal failures in health technology assessment is the absence of consideration given, not only to the standards of normal science, but to those of fundamental measurement. A recent evidence report by the Institute for Clinical and Economic Review (ICER) is emblematic of this failure. Based on a simple linear regression model that translates aggregate scores from the ordinal Menopause-specific Quality of Life Questionnaire (MENQOL) to the ordinal EuroQol EQ-5D-5L, ICER has applied these scores to an assumption driven model simulation to produce preferences, QALYs and incremental cost-per-QALY claims for fezolinetant for moderate to severe symptoms associated with menopause. Unfortunately, the attempt to crosswalk multidimensional or multiattribute ordinal scores is mathematically impossible. The ‘created’ EQ-5D-5L preferences are, as a result, of no interest. The overall result is that the ICER modelled claims for cost-effectiveness fail the required standards for normal science and fundamental measurement. fundamental are impossible. This is unfortunate, although it might be possible to assess certain domains of the MENQOL for their approximation to an interval score with the application of the Rasch Rating Scale Model, this will not support quality of life claims. A preferred approach would be to consider an alternative latent trait for quality of life in menopause, applying Rasch Measurement Theory (RMT), to develop a polytomous instrument that has the required measurement properties. The purpose of this commentary is to point out, as a number of previous commentaries have done, that this framework for creating assumption driven simulated modelled claims has no role in decisions for product assessment, access to formulary and pricing. This commentary expands upon these previous commentaries in placing RMT is the context of a needed paradigm shift to support the evolution of objective knowledge. This is critical if we are to understand, from the individual’s perspective, not only an accurate assessment of the burden of menopause but to see this as part of an on-going research program that has to rely on fundamental measurement.

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Big Changes in Achievement Between Cohorts: A True Reflection of Educational Improvement or Is the Test to Blame?

Cited by 2 publications

References 23 publications

Validation of the ADHD-Behaviour Rating Scale for early childhood teacher use in South African classrooms

Validation of the ADHD-Behaviour Rating Scale for early childhood teacher use in South African classrooms

Post-Menopausal Quality of Life Claims: Overlooking the Requirements of Normal Science and Fundamental Measurement in ICER’S Cost-Effectiveness Assessment of Fezolinetant for Moderate to Severe Vasomotor Symptoms

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