Prøveforelesning og disputas: Line Walquist Sørli v/ ILP

Tittel på avhandlingen:
«Childhood Speech Sound Development and Difficulties: Relationship with Language and Reading»

Prøveforelesningstekst:
“The relationship between the development of speech production and broader language skills in the first five years of life”.

Avhandlingen vil bli tilgjengelig i Munin. 
 

Prøveforelesning starter kl 10.10 mens disputasen starter kl. 1215. Begge deler vil bli strømmet (Panopto). Det vil også bli gjort opptak av prøveforelesning og disputas som vil være tilgjengelig i en måned.

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Populærvitenskapelig sammendrag:
This doctoral dissertation investigates the relationship between childhood speech sound skills and the development of language comprehension and reading skills. The study aims to investigate whether early speech sound difficulties serves as a risk factor for broader language problems, including language comprehension and literacy, both concurrently and longitudinally. Furthermore, the dissertation examines the predictive role of preschool speech sound skills in the development of later expressive language skills, listening comprehension, and reading comprehension during the school-age years. Additionally, a central focus is the examination of potential moderating factors influencing the relationships between these skills.

The dissertation addresses a total of nine research questions through three distinct studies: (1) a systematic review and meta-analysis of studies on children with speech sound difficulties and typically developing children, both concurrently and longitudinally, (2) a longitudinal study of 215 typically developing Norwegian children followed from ages four to nine, and (3) a concurrent retrospective study of 228 Norwegian children identified as poor readers at ages seven to eight. Utilizing meta-analytic methods and structural equation modeling (SEM), this dissertation examines speech sound skills as predictors of growth trajectories over time, providing insights into the developmental patterns of language comprehension and reading.

Key findings from the three studies revealed:

1. A significant relationship exists between early speech sound difficulties and language comprehension as well as reading skills, both concurrently and longitudinally, with phonological awareness serving as a key moderator.
2. Speech sound skills in preschoolers have predictive value, both independently and in conjunction with language comprehension, for later language and literacy development during early school years.
3. The results suggest that phonological awareness underlies the relationship between speech sound skills and early reading skills. However, the association between speech sound skills and language comprehension remains significant even after accounting for phonological awareness, suggesting a plausible causal relationship where speech sound skills influence language development.
4. The nature of speech sound errors (delayed vs. disordered) and persistent speech sound difficulties in school-age children serve as important indicators of concurrent language comprehension problems.

These findings emphasize the importance of early identification and intervention for children with speech sound difficulties, aiming mitigate the risk of language and literacy challenges. The research underscores the crucial role of speech sound skills in shaping academic trajectories, providing valuable insights for both educational and clinical practices

Veiledere: 
Hovedveileder professor Trude Nergård-Nilssen, UiT Norges arktiske universitet
Medveileder professor Monica Melby-Lervåg, UiO  

Bedømmelseskomité:
Første opponent: førsteamanuensis DPhil Emma Hayiou-Thomas, University of York
Andre opponent: professor ph.d. Julia M. Carroll, University of Birmingham
Leder av komiteen: førsteamanuensis ph.d. Monica I. Norvik, UiT Norges arktiske universitet

Leder av disputas:
Assisterende instituttleder for forskning v/ILP Siri Sollied Madsen, Institutt for lærerutdanning og pedagogikk

De som ønsker å opponere ex. auditorio kan sende epost til disputasleder Siri Sollied Madsen (siri.s.madsen@uit.no) innen kl. 14:00 på disputasdagen.