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This doctoral thesis explores the question of how much people’s ability to reflect on another person’s intentions and perspectives contributes to their success in understanding language, and further how children acquire these communication skills during development. This aim is achieved by focusing on a specific linguistic phenomenon, scalar implicatures, by which listeners enrich the meaning of a given utterance to implicate more than what is explicitly said. Such implicatures arise when a speaker uses a less informative term, such as “some”, when a more informative term like “all” is also available, thus leading the listener to the conclusion that the more informative alternative must be false. For instance, if a speaker says that some of her friends are curly, the listener will enrich the statement and assume that not all of them are. The first part of the thesis is focused on scalar implicature derivation during adulthood, to delineate the role of understanding communicative intention and reasoning about people’s epistemic state in the derivation process. The second part of the thesis investigates theoretical and methodological aspects of the acquisition of scalar implicatures, both through reviews of the literature and experimental studies investigating the role of inhibitory control, intention-reading and perspective-taking in implicature derivation between the ages of 2 and 17.

This thesis explores the development of emergent literacy in Hong Kong Kindergarten children who are learning English as a Second Language (L2). Two interrelated empirical studies have been conducted, and both aim to examine the contribution of code-related and oral language skills to predicting early L2 reading ability, controlling for home influences. The majority of research on emergent literacy has been conducted on First-Language (L1) English-speaking children, and it is possible that these established concepts and models could also be relevant to L2 children. The first is a 2-year longitudinal study examining the continuity of L2 emergent literacy development in Hong Kong children from Kindergarten to early Primary school. The convenience sample of 51 children were initially assessed in their final or penultimate year of Kindergarten (mean age: 4;6 SD = 6.16) on 3 emergent literacy measures (receptive vocabulary, phonological awareness, letter identification) and a non-verbal cognitive measure. They later progressed onto the Primary section of the same school, and were assessed again as first or second-graders (mean age: 6;4 SD = 6.21) on a more comprehensive battery of measures. An extensive parental questionnaire on family demographics and the home literacy environment was also administered. In addition to assessing a wide range of L2 emergent literacy skills and English word reading ability, a Chinese syllable deletion task was also included, to explore the potential effects of cross-linguistic phonological transfer between the children’s L1 (Cantonese) and L2 (English). The second study sought to improve upon the first by selecting a larger, more representative sample of children from 3 bilingual Kindergartens in the Kowloon City School District. It examines the concurrent relationships between emergent literacy skills and L2 word reading ability in 137 children. They were all in their final year of Kindergarten (mean age: 5;2 SD = 5.61), and were assessed once on largely the same battery of measures as Study 1 (Time 2). Again, a non-verbal cognitive measure was administered, as well as the parental questionnaire on home support for language development. The main data analysis was carried out via multivariate statistical techniques such as multiple regression. Further analysis was conducted using structural equation modelling in Study 2, but in a cautious and exploratory manner. The overall findings suggest that like the L1 emergent literacy model, early L2 word reading ability is predominantly influenced by children’s code-related skills, especially print knowledge and phonological sensitivity. Also, the relationship between oral language and word reading seems to be mediated by code-related skills. Thus, while oral language abilities do not appear to make substantial direct contributions to early L2 reading, they do play an essential albeit indirect role. Furthermore, L2 children’s home influences seem to make their strongest impact before formal schooling begins, again in the form of indirect effects on pre-school oral language skills. In short, the development of emergent literacy and early word reading skills is similar in many ways for both L1 and L2 children, and implications for practice are considered.

Pascal Boyer’s theory of counterintuitive cultural representations asserts that concepts that violate developmentally natural intuitive knowledge structures demand more attention and are more transmittable than other concepts (Boyer and Ramble 2001: 535-64). Grounded in an empirically justified framework of ontological domain knowledge, counterintuitive representations have been identified across human cultures as consistently prevalent in religious beliefs and widely known folktales. Indeed, the ubiquity of counterintuitive representations of supernatural agents in world religions has led some to reason that its presence is a defining factor of “religion” (Atran 2002; Boyer 1994, 2001; Brown 1991; Pyysiäinen, Lindeman and Honkela 2003). The theory has attracted considerable attention from scholars. Boyer discussed and predicted the mnemonic advantages of culturally “familiar” counterintuitive representations (Boyer 2001: 58-105), yet this integral aspect has been poorly investigated, especially because subsequent free-recall studies have focused on novel representations that similarly violate assumptions about our intuitive ontologies. These studies have suffered from a variety of other shortcomings: small sample sizes that poorly represent population demographics and age ranges (most recruited university students); limited investigation of different modes of cultural transmission (most centred on written stimuli); emphasis on free recall at the expense of other measures of memory; and incomplete research into interactions of schema-level effects (e.g. positive and negative emotion, imagery, humour, and inferential potential) on the memorability of counterintuitive ideas. Although the theory claims universality across human cultures, purported differences between holistic and analytic types of cognition suggest that it is likely that East Asians process counterintuitive ideas differently from Westerners. But until this dissertation no data had yet been collected in East Asia. Hence, a large age-representative sample (N = 940), for three studies in both the UK and China, was used to investigate the interaction of template- and schema-level effects for wider forms of transmission biases endemic to cultural groups. The investigation comprised the interaction of the mnemonic effects of familiarity and counterintuitiveness and the impact of schema-level effects, employing a mixing of presentation media (Study #1), template-level preferences when generating schema-level ideas (Study #2), and transmission advantages for supernatural agents (Study #3). Study #1 consisted of two free-recall experiments: a minimal condition (subject-predicate statement) and elaborated condition (additional descriptive elements) of stimuli structure. The results were analysed by hierarchical linear model (HLM), with familiarity, counterintuitiveness, and delay as 2-level fixed factors, and age and schema-level effects as covariates. The findings revealed mixed support for predictions of the typical formulation of Boyer’s hypothesis. However, subsequent analyses revealed a significant interaction of counterintuitiveness x age and of counterintuitiveness x familiarity, for all conditions and cultural sites. Schema-level effects were also found to predict recall rate. Study #2 investigated template-level biases in a statement generation task. An analysis of covariance (ANCOVA) considering counterintuitiveness and the covariate of age revealed that children are significantly more likely to author counterintuitive ideas than older adults, in both UK and China. Study #3 (comparable in design to Study #1) found a significant interaction of counterintuitiveness x ontological category, revealed to be due to participants’ better recall rates, at both locations, for counterintuitive concepts belonging to the ontological category PERSONS. In summary, it appears that the counterintuitive effect is not as straightforward as it has been thought to be, and requires further theoretical development and empirical research to improve understanding about the interactive role of age, schema-level effects, and ontological category in the transmission and cultural epidemiology of such representations.