Variegation - the presence of more than one supraglottal consonant per word - is a key challenge for children as they increase their expressive vocabulary toward the end of the single-word period. Here we consider the prosodic structures of target words and child forms in English, Finnish, French, Japanese and Mandarin to determine whether…

In a changing society where the roles of fathers and mothers in caregiving are becoming more equal, the role of the father in early language development has also changed. We aimed to study associations between paternal factors and early vocabulary development in boys and girls. In a longitudinal cohort study, we examined the growth of expressive…

The association between pre-reading skills and phonological production skills has been shown at school age, but less is known about how these skills interact at an earlier age when they are just developing. The focus was to investigate whether a connection between pre-reading skills (letter naming, rapid automatised naming; RAN) and phonological…

While mobile app-mediated communication between children and members of their family represents a substantial part of contemporary family communication and language input, we still know very little about the role of these technologies in family language policy (FLP). With an explorative questionnaire survey, the current study set out to examine…

This dissertation investigates the soft typology of phonological patterns. By studying the types of patterns observed in the world's languages, we can do more than determine what is attested and what is unattested, or what is possible and what is impossible, but discover a wide range of more gradient phenomena. Phonological patterns range from…

Background noise challenges auditory recognition of speech and may reveal the underlying deficits in auditory word recognition skills. Previous studies have reported an association between children's auditory skills and various linguistic skills, including phonology, although in some languages only. However, language-specific features influence…

Few studies provide information on the reliability and validity of parental report instruments when assessing the language skills of pre-school-aged children. This study investigates the internal consistency and concurrent validity of the parental report instrument, the Finnish version of the Communicative Development Inventory III (FinCDI III),…

Purpose: The purpose of this study was to investigate the time course of vocal development in infants and toddlers with bilateral cochlear implants (CIs; bilateral CI group) who are acquiring Finnish and to compare their progress to that of infants with normal hearing and typical development (TD group). Method: Five thousand nine hundred…

Subject relative clauses (RCs) have been shown to be acquired earlier, comprehended more accurately, and produced more easily than object RCs by children. While this subject preference is often claimed to be a universal tendency, it has largely been investigated piecemeal and with low-powered experiments. To address these issues, this…

The main goal of this tutorial is to promote the study of children with developmental language disorder (DLD) across different languages of the world. The cumulative effect of these efforts is likely to be a set of more compelling and comprehensive theories of language learning difficulties and, possibly, of language acquisition in general.…

Describing events may be challenging for any child, but children who use communication aids may face unique linguistic, pragmatic, and strategic challenges in conveying information with the communication means they have available. This study explores strategies used by young, aided communicators when describing the content of a video unknown to…

Parental reports are a widely-used source of information about infants' and toddlers' communicative skills, but parent-report instruments valid for children older than 30 months are less known. This study explored individual variability in children's communicative skills at the age of 3;0 via parental reports using the Estonian (E) CDI-III. The…

The paper examines how children quote their parents' utterances. In other words, it investigates linguistic recycling as an aspect of language learning and how the child-directed speech (CDS) of adults influences child speech (CS). This topic is examined especially in the light of research made in the crosslinguistic project on pre- and…

Maternal responsive and directive speech to children at ages 0;10 and 2;0 was investigated by applying a procedure frst introduced by Flynn and Masur (2007) to a new language community (Finnish). The issues examined were consistency and stability over time, and also the role of responsiveness and directiveness in child linguistic development at…

This article investigates the language orientations in education policy documents for early childhood education and care (ECEC) in Finland and Norway. Finland, an officially bilingual country, and Norway, a predominantly monolingual country, share similar views on ECEC. However, the ECEC field in both countries has undergone major changes in…