In order to evaluate the appropriateness of a standardized vocabulary measure for linguistically diverse kindergarten children this study examined response patterns of young Canadian children using the Peabody Picture Vocabulary Test –Third Edition (PPVT-III, Dunn & Dunn, 1997). Questions have been asked about whether the PPVT-III is an appropriate measure to use with young English Language Learners (ELL) because items may be culturally or linguistically biased. Further, it is of both psychometric and educational relevance to understand measurement of English vocabulary acquisition among young English First Language (EL1) and English Language Learner (ELL) children. PPVT-III scores were compared in two language groups – 52 EL1 and 73 ELL 4- and 5-year-old children. There were significant differences between the two groups in overall standard scores, with EL1 students performing significantly better than ELL students. In contrast, demographic factors of grade, gender and maternal education were not related to PPVT-III standard scores. A Mantel-Haenszel Differential Item Functioning (DIF) analysis provided a detailed picture of how individual test items functioned psychometrically in the two language groups. This analysis showed limited indications of DIF in the first 168 items of the PPVT-III, suggesting minimal test bias on the PPVT-III. Further analyses examined teachability of items, that is, how easily words can be taught, and the semantic categories of items, that is, parts of speech such as verbs, nouns and adjectives. These further analyses showed that the mean proportion of correct scores for all types of words was significantly different for EL1 and ELL children. Based on these detailed analyses it was concluded that differences in PPVT-III standard scores for EL1 and ELL 4- and 5-year-old children were not due to test bias, nor were they due to specific item properties. The mean differences observed between EL1 and ELL children were thus taken to reflect item impact, a difference in overall receptive vocabulary. In addition to establishing the utility of the PPVT-III for linguistically diverse kindergarten children this study also provides a descriptive picture of how EL1 and ELL children show variation across different types of word learning.

In order to evaluate the appropriateness of a standardized vocabulary measure for linguistically diverse kindergarten children this study examined response patterns of young Canadian children using the Peabody Picture Vocabulary Test –Third Edition (PPVT-III, Dunn & Dunn, 1997). Questions have been asked about whether the PPVT-III is an appropriate measure to use with young English Language Learners (ELL) because items may be culturally or linguistically biased. Further, it is of both psychometric and educational relevance to understand measurement of English vocabulary acquisition among young English First Language (EL1) and English Language Learner (ELL) children. PPVT-III scores were compared in two language groups – 52 EL1 and 73 ELL 4- and 5-year-old children. There were significant differences between the two groups in overall standard scores, with EL1 students performing significantly better than ELL students. In contrast, demographic factors of grade, gender and maternal education were not related to PPVT-III standard scores. A Mantel-Haenszel Differential Item Functioning (DIF) analysis provided a detailed picture of how individual test items functioned psychometrically in the two language groups. This analysis showed limited indications of DIF in the first 168 items of the PPVT-III, suggesting minimal test bias on the PPVT-III. Further analyses examined teachability of items, that is, how easily words can be taught, and the semantic categories of items, that is, parts of speech such as verbs, nouns and adjectives. These further analyses showed that the mean proportion of correct scores for all types of words was significantly different for EL1 and ELL children. Based on these detailed analyses it was concluded that differences in PPVT-III standard scores for EL1 and ELL 4- and 5-year-old children were not due to test bias, nor were they due to specific item properties. The mean differences observed between EL1 and ELL children were thus taken to reflect item impact, a difference in overall receptive vocabulary. In addition to establishing the utility of the PPVT-III for linguistically diverse kindergarten children this study also provides a descriptive picture of how EL1 and ELL children show variation across different types of word learning.

This study examined predictors of program participation and the potential effects of participation on child development in five school sites offering integrated preschool services as part of the Toronto First Duty (TFD) demonstration project. The TFD model offered a seamless, school-based ‘service community’ integrating childcare, kindergarten, family literacy, and other early childhood services. Despite sound conceptual arguments for the utility of integrating early childhood services, no empirical studies have examined the relation between uptake of integrated preschool services and children’s developmental outcomes, within the ecological context of integrated services. This study examined program participation levels or ‘dosage’, while considering the social ecology of the child, including family and school level characteristics that may moderate or mediate the effectiveness of community-level service integration efforts to improve child outcomes during the transition to school. The ecology of participation effects was examined through generalized linear modeling techniques analyzing a linked dataset (N=272) including: (1) systematic intake form and tracking data on hours of program use, (2) children’s school readiness or child development teacher-report ratings (Early Development Instrument) measured across five domains (physical health and well-being, social competence, emotional maturity, language and cognitive development, communication and general knowledge), and (3) a measure of service integration levels across sites. The results provided evidence that TFD achieved its outreach aims in ensuring equitable access for all families; demographic risk factors did not predict less participation in TFD integrated services. In a parallel analysis of predictors of kindergarten absences, there was one difference; males were absent more in kindergarten, whereas there were no gender differences in integrated service participation. The results provided additional evidence that the TFD model has potential in reducing disparities in children’s developmental outcomes since participation dose predicted children’s physical health and well-being, language and cognitive development, and communication and general knowledge, after taking into account demographic, parenting and site factors. Further, parents' being less child-centred and less interested in parent participation, were significant risk factors associated with children's developmental outcomes. This study has implications for understanding the ecological complexities of school readiness, and the potential processes by which program participation affects children’s outcomes.

This study investigated the effects of a shared book reading professional development program on preschool educators’ ability to engage children in book-related conversations and promote word learning. 20 preschool educators were video-recorded reading two books to a small group of children at pre- and posttest eight weeks apart. Educators in the experimental group (n = 10) participated in professional development that included classroom instruction and individualized coaching. The control group remained on the waitlist. All video-recordings were transcribed and coded. Results indicated that educators in the experimental group included significantly more questions, responsive statements, and lexical diversity in their book-related talk compared to the control group. Further, they facilitated longer book-related conversations and had more long conversations (i.e., five turns or longer). Finally, conversations that included inferential talk resulted in the longest conversations. These findings suggest that professional development can enhance educators’ responsiveness during shared book reading.

Traditionally, kindergarten programs have been offered in various ways across the province of Ontario (e.g., half day every day; all day, alternate day). Starting in 2010, the Ontario Ministry of Education began implementing full day, every day kindergarten in all publically funded schools. This large-scale innovation has resulted in a number of important changes. The kindergarten teacher is experiencing a variety of these changes. This qualitative study focuses on reactions and concerns of kindergarten teachers as they begin to implement full day kindergarten. Semi-structured interviews and classroom observations with five kindergarten teachers provide information about these reactions and concerns. The Stages of Concern framework, one aspect of the Concerns-Based Adoption Model (CBAM), will be used to discuss these findings and how full day kindergarten has impacted the kindergarten teacher.

This study investigated the effects of a shared book reading professional development program on preschool educators’ ability to engage children in book-related conversations and promote word learning. 20 preschool educators were video-recorded reading two books to a small group of children at pre- and posttest eight weeks apart. Educators in the experimental group (n = 10) participated in professional development that included classroom instruction and individualized coaching. The control group remained on the waitlist. All video-recordings were transcribed and coded. Results indicated that educators in the experimental group included significantly more questions, responsive statements, and lexical diversity in their book-related talk compared to the control group. Further, they facilitated longer book-related conversations and had more long conversations (i.e., five turns or longer). Finally, conversations that included inferential talk resulted in the longest conversations. These findings suggest that professional development can enhance educators’ responsiveness during shared book reading.

Traditionally, kindergarten programs have been offered in various ways across the province of Ontario (e.g., half day every day; all day, alternate day). Starting in 2010, the Ontario Ministry of Education began implementing full day, every day kindergarten in all publically funded schools. This large-scale innovation has resulted in a number of important changes. The kindergarten teacher is experiencing a variety of these changes. This qualitative study focuses on reactions and concerns of kindergarten teachers as they begin to implement full day kindergarten. Semi-structured interviews and classroom observations with five kindergarten teachers provide information about these reactions and concerns. The Stages of Concern framework, one aspect of the Concerns-Based Adoption Model (CBAM), will be used to discuss these findings and how full day kindergarten has impacted the kindergarten teacher.

This study examined predictors of program participation and the potential effects of participation on child development in five school sites offering integrated preschool services as part of the Toronto First Duty (TFD) demonstration project. The TFD model offered a seamless, school-based ‘service community’ integrating childcare, kindergarten, family literacy, and other early childhood services. Despite sound conceptual arguments for the utility of integrating early childhood services, no empirical studies have examined the relation between uptake of integrated preschool services and children’s developmental outcomes, within the ecological context of integrated services. This study examined program participation levels or ‘dosage’, while considering the social ecology of the child, including family and school level characteristics that may moderate or mediate the effectiveness of community-level service integration efforts to improve child outcomes during the transition to school. The ecology of participation effects was examined through generalized linear modeling techniques analyzing a linked dataset (N=272) including: (1) systematic intake form and tracking data on hours of program use, (2) children’s school readiness or child development teacher-report ratings (Early Development Instrument) measured across five domains (physical health and well-being, social competence, emotional maturity, language and cognitive development, communication and general knowledge), and (3) a measure of service integration levels across sites. The results provided evidence that TFD achieved its outreach aims in ensuring equitable access for all families; demographic risk factors did not predict less participation in TFD integrated services. In a parallel analysis of predictors of kindergarten absences, there was one difference; males were absent more in kindergarten, whereas there were no gender differences in integrated service participation. The results provided additional evidence that the TFD model has potential in reducing disparities in children’s developmental outcomes since participation dose predicted children’s physical health and well-being, language and cognitive development, and communication and general knowledge, after taking into account demographic, parenting and site factors. Further, parents' being less child-centred and less interested in parent participation, were significant risk factors associated with children's developmental outcomes. This study has implications for understanding the ecological complexities of school readiness, and the potential processes by which program participation affects children’s outcomes.

The Canadian early childhood landscape is changing substantially, pushing early childhood from a private family responsibility into the greater public policy discourse. New investments in early childhood services, combined with research that defines the importance of early years learning, requires a careful analysis of the professional preparation of early childhood educators. At the same time typical understandings of family and childhood are being challenged through legal and social policy reforms. Although Canadian demographic changes indicate a growing number of queer families with children, the gap in addressing the interests of queer identified parents and their children is exacerbated by the dominance of a heteronormative perspective in early childhood theory, training and practice. My study demonstrates the disparity between the professional preparation of early childhood educators in Ontario and how queer families are understood in the Canadian context. I draw upon queer theory to deconstruct how educators understand child development patterns and family composition including the newly defined family units that can include single or multiple parents of varying sexual identities that may consist of, but are not limited to lesbian, gay, bisexual, queer and trans parents. Using qualitative methods, the research is grounded in data sources including text analysis of key early childhood texts, focus groups with early childhood educators who have graduated from ECE training programs in Ontario during the last decade and interviews with queer parents with young children enrolled in early childhood programs. I argue that the inherent heteronormative discourse of developmentally appropriate practice silences queer in early childhood training and is embedded in foundational approaches including standards of practice, curriculum frameworks and textbooks commonly used in the training of early childhood educators. Notions of diversity, equity and inclusion structure this silencing. My study also found that early childhood educators have a narrow understanding of how queer parents may be similar or different from other parents. Educators have a limited capacity to support and engage with parents that do not fit the dominant framework of family identity. The queer parents’ narratives consistently present subtle forms of homophobia and transphobia through the silencing of their family in their child’s early childhood program. The results of the study provide an opportunity to reimagine the professional training of early childhood educators embedding a much richer theoretical grounding and teaching practice of diversity and difference that includes queer parents and their children.

Diss. : Fakultät für Kulturwissenschaften : Tübingen : 1980.