Wendy M. Pearce

Exploring the boundaries of SLI: findings from morphosyntactic and story grammar analyses

The nature of morphosyntactic and story‐grammar differences were examined between children with SLI and children with language impairments that fell outside the diagnostic category for SLI solely because of their low non‐verbal cognitive abilities (LNVA). Two oral narratives were elicited from 5‐year‐old children with language impairments and age‐matched children with normally developing language. Morphosyntactic difficulties were found to be similar for children with SLI and children with LNVA. The children with SLI produced more complex stories than the children with LNVA when a complex wordless picture book was used, but not for a single scene picture stimulus. These findings challenge notions about the unique nature of SLI and, understandings of differences and similarities with other language impairments.

A comparison of oral narratives in children with specific language and non-specific language impairment

This research investigated whether children with specific language impairment (SLI) and non-specific language impairment (NLI) could be differentiated by their oral narrative characteristics. Oral narrative samples were collected from 69 children and comparisons were made among four groups of participants. The two language impairment groups (SLI and NLI), aged 4;11–6;03, were matched for age and their linguistics skills. Their oral narratives were compared between these diagnostic groups and with age-matched and language-matched control groups. Measures of narrative structure, cohesion, and information did not significantly differentiate the SLI and NLI groups, suggesting that the influence of their similar linguistic skills on oral narrative measures was stronger than the influence of their differing non-verbal cognition. The SLI group produced significantly more complex and informative oral narratives than the language-matched group, while the NLI group differed from the language-matched group on fewer measures. Interactions among linguistic, cognitive, maturational, and task factors are discussed.

Psychometric Properties of Language Assessments for Children Aged 4–12 Years: A Systematic Review

Introduction: Standardized assessments are widely used by speech pathologists in clinical and research settings to evaluate the language abilities of school-aged children and inform decisions about diagnosis, eligibility for services and intervention. Given the significance of these decisions, it is important that assessments have sound psychometric properties. Objective: The aim of this systematic review was to examine the psychometric quality of currently available comprehensive language assessments for school-aged children and identify assessments with the best evidence for use. Methods: Using the PRISMA framework as a guideline, a search of five databases and a review of websites and textbooks was undertaken to identify language assessments and published material on the reliability and validity of these assessments. The methodological quality of selected studies was evaluated using the COSMIN taxonomy and checklist. Results: Fifteen assessments were evaluated. For most assessments evidence of hypothesis testing (convergent and discriminant validity) was identified; with a smaller number of assessments having some evidence of reliability and content validity. No assessments presented with evidence of structural validity, internal consistency or error measurement. Overall, all assessments were identified as having limitations with regards to evidence of psychometric quality. Conclusions: Further research is required to provide good evidence of psychometric quality for currently available language assessments. Of the assessments evaluated, the Assessment of Literacy and Language, the Clinical Evaluation of Language Fundamentals-5th Edition, the Clinical Evaluation of Language Fundamentals-Preschool: 2nd Edition and the Preschool Language Scales-5th Edition presented with most evidence and are thus recommended for use.

Does the choice of stimulus affect the complexity of children's oral narratives?

There is a lack of normative information that accounts for differences that may result from use of different story stimuli in oral narrative assessment. In this study, story generations in response to a complex wordless picture book and a single-scene picture were compared in a group of sixteen 5-year-old children with normally developing language, using a story grammar analysis. The effect of stimulus was significant, with the children producing longer, more informative and more complex stories for a complex wordless picture book than for a single-scene picture. The implications for clinicians assessing oral narrative skills are discussed.

Reliability and validity of the Pragmatics Observational Measure (POM): A new observational measure of pragmatic language for children

There is a need for a reliable and valid assessment of childhood pragmatic language skills during peer-peer interactions. This study aimed to evaluate the psychometric properties of a newly developed pragmatic assessment, the Pragmatic Observational Measure (POM). The psychometric properties of the POM were investigated from observational data of two studies - study 1 involved 342 children aged 5-11 years (108 children with ADHD; 108 typically developing playmates; 126 children in the control group), and study 2 involved 9 children with ADHD who attended a 7-week play-based intervention. The psychometric properties of the POM were determined based on the COnsensus-based Standards for the selection of health status Measurement INstruments (COSMIN) taxonomy of psychometric properties and definitions for health-related outcomes; the Pragmatic Protocol was used as the reference tool against which the POM was evaluated. The POM demonstrated sound psychometric properties in all the reliability, validity and interpretability criteria against which it was assessed. The findings showed that the POM is a reliable and valid measure of pragmatic language skills of children with ADHD between the age of 5 and 11 years and has clinical utility in identifying children with pragmatic language difficulty.

The cultural appropriateness and diagnostic usefulness of standardized language assessments for Indigenous Australian children

Abstract Speech-language pathologists experience uncertainty about how to interpret standardized assessment results for Indigenous Australian children. There are risks for inappropriate diagnosis: both over- and under-diagnosis of language impairment may occur due to a convergence of linguistic features which causes difficulty in distinguishing between impairment and difference. While the literature suggests that standardized assessments are inappropriate for Indigenous Australian children, there is an absence of empirical documentation to show how Indigenous children perform on standardized tests of language ability. This study examined the performance of 19 Indigenous Australian children, aged 8;01–13;08, from one school on the Clinical Evaluation of Language Fundamentals, Fourth Edition, Australian Standardized Edition. Standardized scores were compared with teacher ratings of childrens oral language skills. Analysis showed poor alignment between teacher ratings and language assessment, and assessment scores were negatively influenced by features of Aboriginal English. Children rated with above average language skills presented with different linguistic profiles from the children rated with average and below average language abilities. The inappropriateness of current standardized language assessments for Indigenous children and the need for further research to guide appropriate assessment are discussed.

Dialectal grammatical differences in oral narratives of school-aged Indigenous Australian children

Abstract Purpose: Childrens oral language samples are regularly analysed in order to describe levels of language development and develop learning goals. However, diagnostic interpretation of language samples from Indigenous Australian children is problematic due to overlap between features of Aboriginal English and features of language impairment in the mainstream non-Indigenous population. Limited studies explore the use of Aboriginal English and its diagnostic impact. This research, therefore, describes the grammatical features of language samples from one group of Indigenous Australian children. Method: Participants were 19 children aged 8;1–13;4 from the same school in a regional city with 100% Indigenous enrolment. The Test of Narrative Language was administered, eliciting three oral narratives, and features of Aboriginal English grammar were coded. Result: Dialect density was highly variable and greater in the Verb Phrase than in the Noun Phrase or Clause Structure. High teacher ratings of oral language ability aligned with lower measures of dialect density and higher grammatical accuracy for Standard Australian English. Grammatical accuracy was frequently higher for Aboriginal English than Standard Australian English. Conclusion: Over-identification of language impairment was identified as a risk when evaluating the language ability of Indigenous Australian children.

Pragmatic Language Outcomes of Children With Attention Deficit Hyperactivity Disorder After Therapist- and Parent-Delivered Play-Based Interventions: Two One-Group Pretest–Posttest Studies With a Longitudinal Component

OBJECTIVE. The pragmatic language outcomes of children with attention deficit hyperactivity disorder (ADHD) were explored across two feasibility studies. METHOD. Five children with ADHD (ages 6‐11 yr), their parents, and 5 typically developing peers completed an assessment 18 mo after a therapist‐delivered intervention (Study 1). Participants then completed a parent‐delivered intervention (Study 2). Blinded ratings of peer‐to‐peer play interactions documented changes in children’s pragmatic language 18 mo after the Study 1 intervention and before, immediately after, and 1 mo after the Study 2 intervention. Nonparametric statistics and Cohen’s d were used to measure change. RESULTS. Children’s pragmatic language outcomes were maintained 18 mo after the therapist‐delivered intervention and significantly improved from before to 1 mo after the parent‐delivered intervention. CONCLUSION. Interventions involving occupational therapist and speech‐language pathologist collaboration, play, and parent and peer involvement may facilitate children’s pragmatic language skills. Wilkes‐Gillan, S., Munro, N., Cordier, R., Cantrill, A., & Pearce, W. (2017). Pragmatic language outcomes of children with attention deficit hyperactivity disorder after therapist‐ and parent‐delivered play‐based interventions: Two onegroup pretest‐posttest studies with a longitudinal component.

Language abilities of Indigenous and non-Indigenous Australian children from low socioeconomic backgrounds in their first year of school

Abstract Purpose: Concern exists about the cross-cultural appropriateness of existing language assessments for non-mainstream populations, including Indigenous children who may speak a non-standard dialect of the mainstream language. This study therefore aims to investigate the language skills of Indigenous Australian children in comparison with non-Indigenous children, with a view to exploring the cultural appropriateness of language sampling assessment methods. Method: The performance of 51 typically developing Indigenous and non-Indigenous Australian children was compared on a standardised assessment and a spoken narrative protocol using language sample analysis measures. All children were in their first year of school and from the same regional city. Result: While the Indigenous children attained significantly lower receptive vocabulary scores than the non-Indigenous children, most language sampling measures from the spoken narrative protocol were similar across the two groups of children. Conclusion: Flexible, naturalistic language sampling approaches using a spoken narrative protocol are thus recommended for Indigenous children from the under-researched Australian context. However, normative data for language sampling are lacking, and further research is needed to explore the cultural validity of assessment and diagnostic procedures for Indigenous Australian children, as well as the influence of socioeconomic and family factors on language skills.