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Autistic children at risk of being underestimated: school-based pilot study of a strength-informed assessment.

Courchesne V, Meilleur AA, Poulin-Lord MP, Dawson M, Soulières I - Mol Autism (2015)

Bottom Line: Autistic performance on RCPM, CEFT, and visual search were correlated.These results indicate that 'minimally verbal' or 'nonverbal' school-aged autistic children may be at risk of being underestimated: they may be wrongly regarded as having little cognitive potential.Our findings support the usefulness of strength-informed approaches to autism and have important implications for the assessment and education of autistic children.

View Article: PubMed Central - PubMed

Affiliation: Rivière-des-prairies Hospital, Centre d'Excellence en Troubles Envahissants du Développement de l'Université de Montréal (CETEDUM), 7070 boulevard Perras, Montréal, QC H1E 1A4 Canada.

ABSTRACT

Background: An important minority of school-aged autistic children, often characterized as 'nonverbal' or 'minimally verbal,' displays little or no spoken language. These children are at risk of being judged 'low-functioning' or 'untestable' via conventional cognitive testing practices. One neglected avenue for assessing autistic children so situated is to engage current knowledge of autistic cognitive strengths. Our aim was thus to pilot a strength-informed assessment of autistic children whose poor performance on conventional instruments suggests their cognitive potential is very limited.

Methods: Thirty autistic children (6 to 12 years) with little or no spoken language, attending specialized schools for autistic children with the highest levels of impairment, were assessed using Wechsler Intelligence Scale for Children (WISC-IV), Raven's Colored Progressive Matrices board form (RCPM), Children's Embedded Figures Test (CEFT), and a visual search task. An age-matched control group of 27 typical children was also assessed.

Results: None of the autistic children could complete WISC-IV; only six completed any subtest. In contrast, 26 autistic children could complete RCPM, with 17 scoring between the 5th and 90th percentile. Twenty-seven autistic children completed the visual search task, while 26 completed CEFT, on which autistic children were faster than RCPM-matched typical children. Autistic performance on RCPM, CEFT, and visual search were correlated.

Conclusion: These results indicate that 'minimally verbal' or 'nonverbal' school-aged autistic children may be at risk of being underestimated: they may be wrongly regarded as having little cognitive potential. Our findings support the usefulness of strength-informed approaches to autism and have important implications for the assessment and education of autistic children.

No MeSH data available.


Related in: MedlinePlus

RCPM percentile score range distribution for the 30 autistic participants.NE = non-evaluable.
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Fig3: RCPM percentile score range distribution for the 30 autistic participants.NE = non-evaluable.

Mentions: We obtained scores for 26 of 30 autistic participants, or 87% of the sample. Scores ranged from the 2nd percentile (estimated; see [17]) to the 90th percentile, with an N = 26 group percentile of 13, which corresponds to a mean IQ of approximately 83. Seventeen (65%) of the 26 children with RCPM scores performed in the normal range, that is, at or above the 5th percentile, or an estimated IQ of 75 or higher. Eight autistic children (31% of those with scores) performed at or above the 50th percentile, and three were at the 90th percentile (see Figure 3). For the 26 tested autistic children, mean raw score (out of 36) was 18.61 (SD = 8.00, range 8 to 32).Figure 3


Autistic children at risk of being underestimated: school-based pilot study of a strength-informed assessment.

Courchesne V, Meilleur AA, Poulin-Lord MP, Dawson M, Soulières I - Mol Autism (2015)

RCPM percentile score range distribution for the 30 autistic participants.NE = non-evaluable.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4359559&req=5

Fig3: RCPM percentile score range distribution for the 30 autistic participants.NE = non-evaluable.
Mentions: We obtained scores for 26 of 30 autistic participants, or 87% of the sample. Scores ranged from the 2nd percentile (estimated; see [17]) to the 90th percentile, with an N = 26 group percentile of 13, which corresponds to a mean IQ of approximately 83. Seventeen (65%) of the 26 children with RCPM scores performed in the normal range, that is, at or above the 5th percentile, or an estimated IQ of 75 or higher. Eight autistic children (31% of those with scores) performed at or above the 50th percentile, and three were at the 90th percentile (see Figure 3). For the 26 tested autistic children, mean raw score (out of 36) was 18.61 (SD = 8.00, range 8 to 32).Figure 3

Bottom Line: Autistic performance on RCPM, CEFT, and visual search were correlated.These results indicate that 'minimally verbal' or 'nonverbal' school-aged autistic children may be at risk of being underestimated: they may be wrongly regarded as having little cognitive potential.Our findings support the usefulness of strength-informed approaches to autism and have important implications for the assessment and education of autistic children.

View Article: PubMed Central - PubMed

Affiliation: Rivière-des-prairies Hospital, Centre d'Excellence en Troubles Envahissants du Développement de l'Université de Montréal (CETEDUM), 7070 boulevard Perras, Montréal, QC H1E 1A4 Canada.

ABSTRACT

Background: An important minority of school-aged autistic children, often characterized as 'nonverbal' or 'minimally verbal,' displays little or no spoken language. These children are at risk of being judged 'low-functioning' or 'untestable' via conventional cognitive testing practices. One neglected avenue for assessing autistic children so situated is to engage current knowledge of autistic cognitive strengths. Our aim was thus to pilot a strength-informed assessment of autistic children whose poor performance on conventional instruments suggests their cognitive potential is very limited.

Methods: Thirty autistic children (6 to 12 years) with little or no spoken language, attending specialized schools for autistic children with the highest levels of impairment, were assessed using Wechsler Intelligence Scale for Children (WISC-IV), Raven's Colored Progressive Matrices board form (RCPM), Children's Embedded Figures Test (CEFT), and a visual search task. An age-matched control group of 27 typical children was also assessed.

Results: None of the autistic children could complete WISC-IV; only six completed any subtest. In contrast, 26 autistic children could complete RCPM, with 17 scoring between the 5th and 90th percentile. Twenty-seven autistic children completed the visual search task, while 26 completed CEFT, on which autistic children were faster than RCPM-matched typical children. Autistic performance on RCPM, CEFT, and visual search were correlated.

Conclusion: These results indicate that 'minimally verbal' or 'nonverbal' school-aged autistic children may be at risk of being underestimated: they may be wrongly regarded as having little cognitive potential. Our findings support the usefulness of strength-informed approaches to autism and have important implications for the assessment and education of autistic children.

No MeSH data available.


Related in: MedlinePlus