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Startin CM, Hamburg S, Strydom A. Comparison of Receptive Verbal Abilities Assessed Using the KBIT-2 and BPVS3 in Adults With Down Syndrome. Front Psychol. 2019;9:2730doi: 10.3389/fpsyg.2018.02730.
Startin, C. M., Hamburg, S., Strydom, A. (2018). Comparison of Receptive Verbal Abilities Assessed Using the KBIT-2 and BPVS3 in Adults With Down Syndrome. Frontiers in psychology, 92730. https://doi.org/10.3389/fpsyg.2018.02730
Startin, Carla M, et al. "Comparison of Receptive Verbal Abilities Assessed Using the KBIT-2 and BPVS3 in Adults With Down Syndrome." Frontiers in psychology vol. 9 (2018): 2730. doi: https://doi.org/10.3389/fpsyg.2018.02730
Startin CM, Hamburg S, Strydom A. Comparison of Receptive Verbal Abilities Assessed Using the KBIT-2 and BPVS3 in Adults With Down Syndrome. Front Psychol. 2019 Jan 17;9:2730. doi: 10.3389/fpsyg.2018.02730. eCollection 2018. PMID: 30705655; PMCID: PMC6344413.
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Front Psychol. 2019 Jan 17;9:2730. doi: 10.3389/fpsyg.2018.02730. eCollection 2018.

Comparison of Receptive Verbal Abilities Assessed Using the KBIT-2 and BPVS3 in Adults With Down Syndrome.

Frontiers in psychology

Carla M Startin, Sarah Hamburg, Andre Strydom,

Affiliations

  1. Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.
  2. Division of Psychiatry, University College London, London, United Kingdom.
  3. LonDownS Consortium, London, United Kingdom.

PMID: 30705655 PMCID: PMC6344413 DOI: 10.3389/fpsyg.2018.02730

Abstract

Down syndrome (DS) is the most common genetic cause of intellectual disability. There is, however, considerable variation in cognitive abilities between those with DS, with some individuals scoring at floor on some tests, particularly for age-standardised outcomes. This variation and these floor effects can pose a problem for comparing and combining study populations when different standardised measures have been used to assess individuals' cognitive abilities, for example combining results across studies to investigate genetic or other factors associated with cognitive abilities. To facilitate this comparison and combination of study populations assessed using different tests of verbal abilities, we administered two commonly used standardised tests of receptive language, the Kaufmann Brief Intelligence Test 2 (KBIT-2) verbal scale and the British Picture Vocabulary Scale 3 (BPVS3) to 34 adults with DS (age range 19-59) to investigate relationships between outcomes for these two tests. We found a very strong correlation between raw scores for the KBIT-2 verbal scale and the BPVS3, and determined equations to convert between scores for the two tests. Intraclass correlations between the two scales for age-equivalents and calculated

Keywords: British Picture Vocabulary Scale 3 (BPVS3); Down syndrome; Kaufmann Brief Intelligence Test 2 (KBIT-2); intellectual disability; receptive verbal ability

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