Psychometric properties of the English language version of the C-BiLLT evaluated in typically developing Canadian children

Jael N. Bootsma; Fiona Campbell; Dayle McCauley; Sarah Hopmans; Danijela Grahovac; B. J. Cunningham; Michelle Phoenix; Olaf Kraus De Camargo; Johanna Geytenbeek; Jan Willem Gorter

doi:10.3233/PRM-210101

Psychometric properties of the English language version of the C-BiLLT evaluated in typically developing Canadian children

Jael N. Bootsma, Fiona Campbell, Dayle McCauley, Sarah Hopmans, Danijela Grahovac, B. J. Cunningham^*, Michelle Phoenix, Olaf Kraus De Camargo, Johanna Geytenbeek^*, Jan Willem Gorter

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

PURPOSE: This study aimed to 1) investigate the convergent and discriminant validity, internal consistency, and test-retest reliability of the Canadian English version of the Computer-Based instrument for Low motor Language Testing (C-BiLLT-CAN), and 2) explore feasibility of the C-BiLLT assessment for children with cerebral palsy (CP) and complex communication needs in the Canadian health care context. METHODS: Eighty typically developing children between 1.5 and 8.5 years of age completed the C-BiLLT-CAN, the Peabody Picture Vocabulary Test-IV (PPVT-4), the receptive language sub-test of the New Reynell Developmental Language Scales (NRDLS), and/or the Raven's 2. Correlations between raw scores were calculated for estimates of convergent and discriminant validity. Internal consistency was calculated for all items and separately for items pertaining to vocabulary and grammar. To calculate the standard error of measurement (SEM) and intraclass correlation coefficient (ICC), 33 participants were re-tested with the C-BiLLT within three weeks. Feasibility was explored with nine participants with CP. RESULTS: C-BiLLT-CAN's convergent validity was good to excellent (Spearman's rho > 0.78) and discriminant validity was higher than hypothesized (Spearman's rho > 0.8). Internal consistency (Cronbach's alpha = 0.96), test-retest reliability (ICC > 0.9), and measurement error (SEM < 5%) were excellent. The feasibility study could not be fully completed due to the COVID-19 pandemic. Preliminary data demonstrated some technical and practical barriers for using the C-BiLLT in children with CP in Canada. CONCLUSION: The C-BiLLT-CAN showed good to excellent psychometric properties in a sample of typically developing children, indicating that it is an adequate test for measuring language comprehension in English-speaking Canadian children. Further research is needed to investigate the feasibility of the C-BiLLT-CAN in children with CP.

Original language	English
Pages (from-to)	71-81
Number of pages	11
Journal	Journal of Pediatric Rehabilitation Medicine
Volume	16
Issue number	1
DOIs	https://doi.org/10.3233/PRM-210101
Publication status	Published - 2023

Keywords

Cerebral palsy
cognition
language comprehension
non-verbal communication
psychometrics

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Bootsma, J. N., Campbell, F., McCauley, D., Hopmans, S., Grahovac, D., Cunningham, B. J., Phoenix, M., De Camargo, O. K., Geytenbeek, J., & Gorter, J. W. (2023). Psychometric properties of the English language version of the C-BiLLT evaluated in typically developing Canadian children. Journal of Pediatric Rehabilitation Medicine, 16(1), 71-81. https://doi.org/10.3233/PRM-210101

@article{0de57ddcdf3d42f2971c71919373baef,

title = "Psychometric properties of the English language version of the C-BiLLT evaluated in typically developing Canadian children",

abstract = "PURPOSE: This study aimed to 1) investigate the convergent and discriminant validity, internal consistency, and test-retest reliability of the Canadian English version of the Computer-Based instrument for Low motor Language Testing (C-BiLLT-CAN), and 2) explore feasibility of the C-BiLLT assessment for children with cerebral palsy (CP) and complex communication needs in the Canadian health care context. METHODS: Eighty typically developing children between 1.5 and 8.5 years of age completed the C-BiLLT-CAN, the Peabody Picture Vocabulary Test-IV (PPVT-4), the receptive language sub-test of the New Reynell Developmental Language Scales (NRDLS), and/or the Raven's 2. Correlations between raw scores were calculated for estimates of convergent and discriminant validity. Internal consistency was calculated for all items and separately for items pertaining to vocabulary and grammar. To calculate the standard error of measurement (SEM) and intraclass correlation coefficient (ICC), 33 participants were re-tested with the C-BiLLT within three weeks. Feasibility was explored with nine participants with CP. RESULTS: C-BiLLT-CAN's convergent validity was good to excellent (Spearman's rho > 0.78) and discriminant validity was higher than hypothesized (Spearman's rho > 0.8). Internal consistency (Cronbach's alpha = 0.96), test-retest reliability (ICC > 0.9), and measurement error (SEM < 5%) were excellent. The feasibility study could not be fully completed due to the COVID-19 pandemic. Preliminary data demonstrated some technical and practical barriers for using the C-BiLLT in children with CP in Canada. CONCLUSION: The C-BiLLT-CAN showed good to excellent psychometric properties in a sample of typically developing children, indicating that it is an adequate test for measuring language comprehension in English-speaking Canadian children. Further research is needed to investigate the feasibility of the C-BiLLT-CAN in children with CP.",

keywords = "Cerebral palsy, cognition, language comprehension, non-verbal communication, psychometrics",

author = "Bootsma, {Jael N.} and Fiona Campbell and Dayle McCauley and Sarah Hopmans and Danijela Grahovac and Cunningham, {B. J.} and Michelle Phoenix and {De Camargo}, {Olaf Kraus} and Johanna Geytenbeek and Gorter, {Jan Willem}",

note = "Publisher Copyright: {\textcopyright} 2023 - The authors. Published by IOS Press.",

year = "2023",

doi = "10.3233/PRM-210101",

language = "English",

volume = "16",

pages = "71--81",

journal = "Journal of Pediatric Rehabilitation Medicine",

issn = "1874-5393",

publisher = "IOS Press",

number = "1",

}

Bootsma, JN, Campbell, F, McCauley, D, Hopmans, S, Grahovac, D, Cunningham, BJ, Phoenix, M, De Camargo, OK, Geytenbeek, J & Gorter, JW 2023, 'Psychometric properties of the English language version of the C-BiLLT evaluated in typically developing Canadian children', Journal of Pediatric Rehabilitation Medicine, vol. 16, no. 1, pp. 71-81. https://doi.org/10.3233/PRM-210101

TY - JOUR

T1 - Psychometric properties of the English language version of the C-BiLLT evaluated in typically developing Canadian children

AU - Bootsma, Jael N.

AU - Campbell, Fiona

AU - McCauley, Dayle

AU - Hopmans, Sarah

AU - Grahovac, Danijela

AU - Cunningham, B. J.

AU - Phoenix, Michelle

AU - De Camargo, Olaf Kraus

AU - Geytenbeek, Johanna

AU - Gorter, Jan Willem

PY - 2023

Y1 - 2023

N2 - PURPOSE: This study aimed to 1) investigate the convergent and discriminant validity, internal consistency, and test-retest reliability of the Canadian English version of the Computer-Based instrument for Low motor Language Testing (C-BiLLT-CAN), and 2) explore feasibility of the C-BiLLT assessment for children with cerebral palsy (CP) and complex communication needs in the Canadian health care context. METHODS: Eighty typically developing children between 1.5 and 8.5 years of age completed the C-BiLLT-CAN, the Peabody Picture Vocabulary Test-IV (PPVT-4), the receptive language sub-test of the New Reynell Developmental Language Scales (NRDLS), and/or the Raven's 2. Correlations between raw scores were calculated for estimates of convergent and discriminant validity. Internal consistency was calculated for all items and separately for items pertaining to vocabulary and grammar. To calculate the standard error of measurement (SEM) and intraclass correlation coefficient (ICC), 33 participants were re-tested with the C-BiLLT within three weeks. Feasibility was explored with nine participants with CP. RESULTS: C-BiLLT-CAN's convergent validity was good to excellent (Spearman's rho > 0.78) and discriminant validity was higher than hypothesized (Spearman's rho > 0.8). Internal consistency (Cronbach's alpha = 0.96), test-retest reliability (ICC > 0.9), and measurement error (SEM < 5%) were excellent. The feasibility study could not be fully completed due to the COVID-19 pandemic. Preliminary data demonstrated some technical and practical barriers for using the C-BiLLT in children with CP in Canada. CONCLUSION: The C-BiLLT-CAN showed good to excellent psychometric properties in a sample of typically developing children, indicating that it is an adequate test for measuring language comprehension in English-speaking Canadian children. Further research is needed to investigate the feasibility of the C-BiLLT-CAN in children with CP.

AB - PURPOSE: This study aimed to 1) investigate the convergent and discriminant validity, internal consistency, and test-retest reliability of the Canadian English version of the Computer-Based instrument for Low motor Language Testing (C-BiLLT-CAN), and 2) explore feasibility of the C-BiLLT assessment for children with cerebral palsy (CP) and complex communication needs in the Canadian health care context. METHODS: Eighty typically developing children between 1.5 and 8.5 years of age completed the C-BiLLT-CAN, the Peabody Picture Vocabulary Test-IV (PPVT-4), the receptive language sub-test of the New Reynell Developmental Language Scales (NRDLS), and/or the Raven's 2. Correlations between raw scores were calculated for estimates of convergent and discriminant validity. Internal consistency was calculated for all items and separately for items pertaining to vocabulary and grammar. To calculate the standard error of measurement (SEM) and intraclass correlation coefficient (ICC), 33 participants were re-tested with the C-BiLLT within three weeks. Feasibility was explored with nine participants with CP. RESULTS: C-BiLLT-CAN's convergent validity was good to excellent (Spearman's rho > 0.78) and discriminant validity was higher than hypothesized (Spearman's rho > 0.8). Internal consistency (Cronbach's alpha = 0.96), test-retest reliability (ICC > 0.9), and measurement error (SEM < 5%) were excellent. The feasibility study could not be fully completed due to the COVID-19 pandemic. Preliminary data demonstrated some technical and practical barriers for using the C-BiLLT in children with CP in Canada. CONCLUSION: The C-BiLLT-CAN showed good to excellent psychometric properties in a sample of typically developing children, indicating that it is an adequate test for measuring language comprehension in English-speaking Canadian children. Further research is needed to investigate the feasibility of the C-BiLLT-CAN in children with CP.

KW - Cerebral palsy

KW - cognition

KW - language comprehension

KW - non-verbal communication

KW - psychometrics

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U2 - 10.3233/PRM-210101

DO - 10.3233/PRM-210101

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SN - 1874-5393

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EP - 81

JO - Journal of Pediatric Rehabilitation Medicine

JF - Journal of Pediatric Rehabilitation Medicine

IS - 1

ER -

Psychometric properties of the English language version of the C-BiLLT evaluated in typically developing Canadian children

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Keywords

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