Cognitive Profiles of Finnish Preschool Children With Expressive and Receptive Language Impairment

Purpose

The aim of this study was to compare the verbal and nonverbal cognitive profiles of children with specific language impairment (SLI) with problems predominantly in expressive (SLI-E) or receptive (SLI-R) language skills. These diagnostic subgroups have not been compared before in psychological studies.

Method

Participants were preschool-age Finnish-speaking children with SLI diagnosed by a multidisciplinary team. Cognitive profile differences between the diagnostic subgroups and the relationship between verbal and nonverbal reasoning skills were evaluated.

Results

Performance was worse for the SLI-R subgroup than for the SLI-E subgroup not only in verbal reasoning and short-term memory but also in nonverbal reasoning, and several nonverbal subtests correlated significantly with the composite verbal index. However, weaknesses and strengths in the cognitive profiles of the subgroups were parallel.

Conclusions

Poor verbal comprehension and reasoning skills seem to be associated with lower nonverbal performance in children with SLI. Performance index (Performance Intelligence Quotient) may not always represent the intact nonverbal capacity assumed in SLI diagnostics, and a broader assessment is recommended when a child fails any of the compulsory Performance Intelligence Quotient subtests. Differences between the SLI subgroups appear quantitative rather than qualitative, in line with the new Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM V) classification (American Psychiatric Association, 2013).

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