Twila Tardif
Datos Biográficos
| ID | 94050 |
|---|---|
| NOMBRE | Twila Tardif |
| NOMBRES | Twila |
| APELLIDO | Tardif |
| FIRMA | TARDIF T |
| AFILIACIONES | University of Michigan |
| ORCID | 0000-0001-8739-9090 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 27 |
| TOTAL DE CITAS | 107 |
| TOTAL COMO AUTOR | 27 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1996 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2025 |
| ÍNDICE H | 6 |
Cross-linguistic transfer in bilingual children's phonological and morphological awareness skills
Cross-linguistic interactions are the hallmark of bilingual development. Theoretical perspectives highlight the key role of cross-linguistic distances and language structure in literacy development. Despite the strong theoretical assumptions, the impact of such bilingualism factors in heritage-language speakers remains elusive given high variability in children's heritage-language experiences. A longitudinal inquiry of heritage-language learners …
Health Behaviors During the Covid-19 Epidemic
Control of the COVID-19 pandemic requires significant changes in people’s health behaviors. We offer this multidisciplinary perspective on the extent of compliance with social distancing recommendations and on coping with these measures around the globe in the first months of the pandemic. We present descriptive data from our survey of 17,650 respondents across 18 countries and territories in June 2020. The majority of respondents worried about c…
What’s in a word? Cross-linguistic influences on Spanish–English and Chinese–English bilingual children’s word reading development
This study investigates the cross-linguistic transfer of literacy skills in Spanish–English, Chinese–English bilingual, and English monolingual children (N = 283, 5–10 years). Research question 1 examines English literacy and asks how phonological and morpho-semantic skills contribute to word reading as a function of children's language background. Structural equation modeling revealed contrasting bilingual effects: compared to English monolingua…
Early grammatical marking development in Mandarin-speaking toddlers
The current study examined early grammatical marking in a relatively understudied language, Mandarin, by using the Mandarin version of MacArthur-Bates Communicative Development Inventory. Two waves of data collection included 338 monolingual children (17-36 months; 143 female) at Time 1 and 308 children (32-55 months; 139 female) at Time 2 and their caregivers, whose education ranged from third grade (elementary school) or below to postgraduate w…
Simultaneous acquisition of English and Chinese impacts children’s reliance on vocabulary, morphological and phonological awareness for reading in English
The developmental process of reading acquisition is frequently conceptualized as a self-organizing mental network consisting of lexico-semantic, phonological and orthographical components. The developmental nature of this network varies across languages and is known to impact second language learners of typologically different languages. Yet, it remains largely unknown whether such cross-linguistic differences interact within young bilingual lear…
The influence of early linguistic skills and family factors on literacy acquisition in Chinese children
English- and Mandarin-learning infants’ discrimination of actions and objects in dynamic events
The present studies examined the role of linguistic experience in directing English and Mandarin learners' attention to aspects of a visual scene. Specifically, they asked whether young language learners in these 2 cultures attend to differential aspects of a word-learning situation. Two groups of English and Mandarin learners, 6-8-month-olds (n = 65) and 17-19-month-olds (n = 91), participated in 2 studies, based on a habituation paradigm, desig…
Phonological skills and vocabulary knowledge mediate socioeconomic status effects in predicting reading outcomes for Chinese children
This study examined the relations among socioeconomic status (SES), early phonological processing, vocabulary, and reading in 262 children from diverse SES backgrounds followed from ages 4 to 9 in Beijing, China. SES contributed to variations in phonological skills and vocabulary in children's early development. Nonetheless, early phonological and vocabulary abilities exerted equally strong and independent mediation of the SES effects on children…
Knowing better
This article examined the ability of young children to adapt their trust in testimony in relation to the strength of their prior knowledge across 2 cultures and 2 age groups. Kindergartners and second graders in the United States and Hong Kong (N = 128) viewed pictures of objects and made category judgments about each object: first, in the presence of a teacher who provided labels that conflicted with their prior knowledge, and again, in a pedago…
Relations between temperament and theory of mind development in the United States and China
The emotional reactivity hypothesis holds that, over the course of phylogeny, the selection of animals with less reactive temperaments supported the development of sophisticated social-cognitive skills in several species, including humans (Hare, 2007). In the ontogenetic human case, an emotional reactivity hypothesis predicts that children with less reactive temperaments will reach certain milestones in theory-of-mind (ToM) development more quick…
Acquisition of generic noun phrases in Chinese
English-speaking children understand and produce generic expressions in the preschool years, but there are cross-linguistic differences in how generics are expressed. Three studies examined interpretation of generic noun phrases in three- to seven-year-old child ( N =192) and adult speakers ( N =163) of Mandarin Chinese. Contrary to suggestions by Bloom (1981), Chinese-speaking adults honor a clear distinction between generics (expressed as bare …
English- and Chinese-learning infants map novel labels to objects and actions differently
Research based on naturalistic and checklist methods has revealed differences between English and Chinese monolingual children in their trajectories of learning nouns and verbs. However, studies based on controlled laboratory designs (e.g., Imai et al., 2008) have yielded a more mixed picture. Guided by a multidimensional view of word learning (in which different mechanisms are weighted and recruited to different extents over development), we exa…
Imageability predicts the age of acquisition of verbs in Chinese children
Verbs are harder to learn than nouns in English and in many other languages, but are relatively easy to learn in Chinese. This paper evaluates one potential explanation for these findings by examining the construct of imageability, or the ability of a word to produce a mental image. Chinese adults rated the imageability of Chinese words from the Chinese Communicative Development Inventory (Tardif et al. , in press). Imageability ratings were a re…
Early vocabulary development in Mandarin (Putonghua) and Cantonese
Parent report instruments adapted from the MacArthur-Bates Communicative Development Inventories (CDI) examined vocabulary development in children aged 0 ; 8 to 2 ; 6 for two Chinese languages, Mandarin ( n =1694) and Cantonese ( n =1625). Parental reports suggested higher overall scores for Mandarin- than for Cantonese-speaking children from approximately 1 ; 4 onward. Factors relevant to the difference were only-child status, monolingual househ…
The Influence of Adult Input on Children’s Early Word Learning
摘要: 追踪观察一名婴儿(6~20个月), 分析其中看护者的言语输入特征及婴儿早期词汇获得的发展变化。主要对成人言语输入中动、名词比例、单词在句中的位置、具体环境等因素及婴儿早期动、名词理解和产生等方面进行探讨。结果显示, 成人言语输入中动词比例显著高于名词, 更多动词位于句首或句尾使得主语和宾语省略; 同时, 这种动词优势的输入特征促进儿童早期动词获得, 使得婴儿早期语言样本中动、名词理解相对比例与成人言语输入一致。这一结果表明, 婴儿词汇发展初期就已经利用言语或社会线索, 同时这种早期词汇组成中较高的动词比例进一步支持“名词优势”理论存在跨语言差异
Culture, Context, or Behavioral Control
Joint book reading provides an ecological context for examining processes involved in the emergence of cultural differences in noun and verb use. Tardif, Gelman, & Xu (1999) found that English- and Mandarin-speaking mothers differed in their relative use of nouns and verbs during joint book reading with their 20-month-olds: Mandarin-speaking mothers produced more main verbs and fewer common nouns than did English-speaking mothers. We sought to cl…
What's in a word? Morphological awareness and vocabulary knowledge in three languages
Understanding how words are created is potentially a key component to being able to learn and understand new vocabulary words. However, research on morphological awareness is relatively rare. In this study, over 660 preschool-aged children from three language groups (Cantonese, Mandarin, and Korean speakers) in which compounding morphology is highly prevalent were tested on their abilities to manipulate familiar morphemes to create novel compound…
Theory of mind development in Chinese children
Baby's first 10 words
Although there has been much debate over the content of children's first words, few large sample studies address this question for children at the very earliest stages of word learning. The authors report data from comparable samples of 265 English-, 336 Putonghua- (Mandarin), and 369 Cantonese-speaking 8- to 16-month-old infants whose caregivers completed MacArthur-Bates Communicative Development Inventories and reported them to produce between …
Language and false belief
Two studies were conducted with Cantonese-speaking preschoolers examining J. de Villiers's (1995) hypothesis that syntactic complements play a unique role in the acquisition of false belief (FB). In Study 1, the authors found a positive correlation between FB and syntactic complements in 72 four- to six-year-old Cantonese-speaking preschoolers. Study 2 followed 72 three- to five-year-old Cantonese-speaking children who initially failed an FB scre…
Obituary
Preschoolers' Understanding of Knowing-That and Knowing-How in the United States and Hong Kong
Two experiments on preschoolers' understanding of the effects of exposure on knowing-that and knowing-how were conducted with 3-, 4-, and 5-year-old children (N=388) in 2 locations: a small midwestern city in the United States and a suburban area of Hong Kong, China. By using both English- and Chinese-speaking samples, the authors examined differences in children's understanding of knowing-that and knowing-how as well as the impact of different t…
False belief understanding in Cantonese-speaking children
The present study investigates the performance of 96 Cantonese-speaking three- to five-year-old preschoolers on three false belief tasks – a deceptive object, a change of location, and an unexpected contents task encompassing a variety of task factors. Most importantly, the research examines the possibility that false belief performance depends on specific linguistic factors such as the type of verb used in the test question – an explicitly false…
Acquisition of mental state language in Mandarin- and Cantonese-speaking children
Children's theory of mind appears to develop from a focus on desire to a focus on belief. However, it is not clear (a) whether this pattern is universal and (b) whether it could also be explained by linguistic and sociocultural factors. This study examined mental state language in 10 Mandarin-speaking (21-27 months) and 8 Cantonese-speaking (18-44 months) toddlers. The results suggest a pattern of theory-of-mind development similar to that in Eng…
Putting the “Noun Bias” in Context
Recently, researchers have been debating whether children exhibit a universal “noun bias” when learning a first language. The present study compares the proportions of nouns and verbs in the early vocabularies of 24 English- and 24 Mandarin-speaking toddlers (M age = 20 months) and their mothers. Three different methods were used to measure the proportion of noun types, relative to verb types: controlled observations in three contexts (book readi…
Nouns are not always learned before verbs
This article examines D. Gentner's (1982) claim that nouns are universally predominant in children's early vocabularies. When a conservative method of counting nouns was used, 9 out of 10 22-month-old monolingual Mandarin-speaking children produced more verbs or action words than nouns or object labels in their naturalistic speech. When a more liberal definition of nouns was used, neither a noun nor a verb bias was found. Importantly, there was n…
Acquisition of mental state language in Mandarin- and Cantonese-speaking children
Children's theory of mind appears to develop from a focus on desire to a focus on belief. However, it is not clear (a) whether this pattern is universal and (b) whether it could also be explained by linguistic and sociocultural factors. This study examined mental state language in 10 Mandarin-speaking (21-27 months) and 8 Cantonese-speaking (18-44 months) toddlers. The results suggest a pattern of theory-of-mind development similar to that in Eng…
Phonological skills and vocabulary knowledge mediate socioeconomic status effects in predicting reading outcomes for Chinese children
This study examined the relations among socioeconomic status (SES), early phonological processing, vocabulary, and reading in 262 children from diverse SES backgrounds followed from ages 4 to 9 in Beijing, China. SES contributed to variations in phonological skills and vocabulary in children's early development. Nonetheless, early phonological and vocabulary abilities exerted equally strong and independent mediation of the SES effects on children…
Theory of mind development in Chinese children
Knowing better
This article examined the ability of young children to adapt their trust in testimony in relation to the strength of their prior knowledge across 2 cultures and 2 age groups. Kindergartners and second graders in the United States and Hong Kong (N = 128) viewed pictures of objects and made category judgments about each object: first, in the presence of a teacher who provided labels that conflicted with their prior knowledge, and again, in a pedago…
Baby's first 10 words
Although there has been much debate over the content of children's first words, few large sample studies address this question for children at the very earliest stages of word learning. The authors report data from comparable samples of 265 English-, 336 Putonghua- (Mandarin), and 369 Cantonese-speaking 8- to 16-month-old infants whose caregivers completed MacArthur-Bates Communicative Development Inventories and reported them to produce between …
Relations between temperament and theory of mind development in the United States and China
The emotional reactivity hypothesis holds that, over the course of phylogeny, the selection of animals with less reactive temperaments supported the development of sophisticated social-cognitive skills in several species, including humans (Hare, 2007). In the ontogenetic human case, an emotional reactivity hypothesis predicts that children with less reactive temperaments will reach certain milestones in theory-of-mind (ToM) development more quick…
Language and false belief
Two studies were conducted with Cantonese-speaking preschoolers examining J. de Villiers's (1995) hypothesis that syntactic complements play a unique role in the acquisition of false belief (FB). In Study 1, the authors found a positive correlation between FB and syntactic complements in 72 four- to six-year-old Cantonese-speaking preschoolers. Study 2 followed 72 three- to five-year-old Cantonese-speaking children who initially failed an FB scre…
Preschoolers' Understanding of Knowing-That and Knowing-How in the United States and Hong Kong
Two experiments on preschoolers' understanding of the effects of exposure on knowing-that and knowing-how were conducted with 3-, 4-, and 5-year-old children (N=388) in 2 locations: a small midwestern city in the United States and a suburban area of Hong Kong, China. By using both English- and Chinese-speaking samples, the authors examined differences in children's understanding of knowing-that and knowing-how as well as the impact of different t…
English- and Mandarin-learning infants’ discrimination of actions and objects in dynamic events
The present studies examined the role of linguistic experience in directing English and Mandarin learners' attention to aspects of a visual scene. Specifically, they asked whether young language learners in these 2 cultures attend to differential aspects of a word-learning situation. Two groups of English and Mandarin learners, 6-8-month-olds (n = 65) and 17-19-month-olds (n = 91), participated in 2 studies, based on a habituation paradigm, desig…
English- and Chinese-learning infants map novel labels to objects and actions differently
Research based on naturalistic and checklist methods has revealed differences between English and Chinese monolingual children in their trajectories of learning nouns and verbs. However, studies based on controlled laboratory designs (e.g., Imai et al., 2008) have yielded a more mixed picture. Guided by a multidimensional view of word learning (in which different mechanisms are weighted and recruited to different extents over development), we exa…
Cross-linguistic transfer in bilingual children's phonological and morphological awareness skills
Cross-linguistic interactions are the hallmark of bilingual development. Theoretical perspectives highlight the key role of cross-linguistic distances and language structure in literacy development. Despite the strong theoretical assumptions, the impact of such bilingualism factors in heritage-language speakers remains elusive given high variability in children's heritage-language experiences. A longitudinal inquiry of heritage-language learners …
Culture, Context, or Behavioral Control
Joint book reading provides an ecological context for examining processes involved in the emergence of cultural differences in noun and verb use. Tardif, Gelman, & Xu (1999) found that English- and Mandarin-speaking mothers differed in their relative use of nouns and verbs during joint book reading with their 20-month-olds: Mandarin-speaking mothers produced more main verbs and fewer common nouns than did English-speaking mothers. We sought to cl…
Nouns are not always learned before verbs
This article examines D. Gentner's (1982) claim that nouns are universally predominant in children's early vocabularies. When a conservative method of counting nouns was used, 9 out of 10 22-month-old monolingual Mandarin-speaking children produced more verbs or action words than nouns or object labels in their naturalistic speech. When a more liberal definition of nouns was used, neither a noun nor a verb bias was found. Importantly, there was n…
Caregiver speech and children's use of nouns versus verbs
This paper examines naturalistic samples of adult-to-child speech to determine if variations in the input are consistent with reported variations in the proportions of nouns and verbs in children's early vocabularies. It contrasts two PRO-DROP languages, Italian and Mandarin, with English. Naturalistic speech samples from six 2;0 English-, six 1;11 Italian-, and ten 1;10 Mandarin-speaking children and their caregivers were examined. Adult-to-chil…
Putting the “Noun Bias” in Context
Recently, researchers have been debating whether children exhibit a universal “noun bias” when learning a first language. The present study compares the proportions of nouns and verbs in the early vocabularies of 24 English- and 24 Mandarin-speaking toddlers (M age = 20 months) and their mothers. Three different methods were used to measure the proportion of noun types, relative to verb types: controlled observations in three contexts (book readi…
Acquisition of mental state language in Mandarin- and Cantonese-speaking children
Children's theory of mind appears to develop from a focus on desire to a focus on belief. However, it is not clear (a) whether this pattern is universal and (b) whether it could also be explained by linguistic and sociocultural factors. This study examined mental state language in 10 Mandarin-speaking (21-27 months) and 8 Cantonese-speaking (18-44 months) toddlers. The results suggest a pattern of theory-of-mind development similar to that in Eng…
False belief understanding in Cantonese-speaking children
The present study investigates the performance of 96 Cantonese-speaking three- to five-year-old preschoolers on three false belief tasks – a deceptive object, a change of location, and an unexpected contents task encompassing a variety of task factors. Most importantly, the research examines the possibility that false belief performance depends on specific linguistic factors such as the type of verb used in the test question – an explicitly false…
Preschoolers' Understanding of Knowing-That and Knowing-How in the United States and Hong Kong
Two experiments on preschoolers' understanding of the effects of exposure on knowing-that and knowing-how were conducted with 3-, 4-, and 5-year-old children (N=388) in 2 locations: a small midwestern city in the United States and a suburban area of Hong Kong, China. By using both English- and Chinese-speaking samples, the authors examined differences in children's understanding of knowing-that and knowing-how as well as the impact of different t…
Obituary
Language and false belief
Two studies were conducted with Cantonese-speaking preschoolers examining J. de Villiers's (1995) hypothesis that syntactic complements play a unique role in the acquisition of false belief (FB). In Study 1, the authors found a positive correlation between FB and syntactic complements in 72 four- to six-year-old Cantonese-speaking preschoolers. Study 2 followed 72 three- to five-year-old Cantonese-speaking children who initially failed an FB scre…
What's in a word? Morphological awareness and vocabulary knowledge in three languages
Understanding how words are created is potentially a key component to being able to learn and understand new vocabulary words. However, research on morphological awareness is relatively rare. In this study, over 660 preschool-aged children from three language groups (Cantonese, Mandarin, and Korean speakers) in which compounding morphology is highly prevalent were tested on their abilities to manipulate familiar morphemes to create novel compound…
Theory of mind development in Chinese children
Baby's first 10 words
Although there has been much debate over the content of children's first words, few large sample studies address this question for children at the very earliest stages of word learning. The authors report data from comparable samples of 265 English-, 336 Putonghua- (Mandarin), and 369 Cantonese-speaking 8- to 16-month-old infants whose caregivers completed MacArthur-Bates Communicative Development Inventories and reported them to produce between …
Imageability predicts the age of acquisition of verbs in Chinese children
Verbs are harder to learn than nouns in English and in many other languages, but are relatively easy to learn in Chinese. This paper evaluates one potential explanation for these findings by examining the construct of imageability, or the ability of a word to produce a mental image. Chinese adults rated the imageability of Chinese words from the Chinese Communicative Development Inventory (Tardif et al. , in press). Imageability ratings were a re…
Early vocabulary development in Mandarin (Putonghua) and Cantonese
Parent report instruments adapted from the MacArthur-Bates Communicative Development Inventories (CDI) examined vocabulary development in children aged 0 ; 8 to 2 ; 6 for two Chinese languages, Mandarin ( n =1694) and Cantonese ( n =1625). Parental reports suggested higher overall scores for Mandarin- than for Cantonese-speaking children from approximately 1 ; 4 onward. Factors relevant to the difference were only-child status, monolingual househ…
The Influence of Adult Input on Children’s Early Word Learning
摘要: 追踪观察一名婴儿(6~20个月), 分析其中看护者的言语输入特征及婴儿早期词汇获得的发展变化。主要对成人言语输入中动、名词比例、单词在句中的位置、具体环境等因素及婴儿早期动、名词理解和产生等方面进行探讨。结果显示, 成人言语输入中动词比例显著高于名词, 更多动词位于句首或句尾使得主语和宾语省略; 同时, 这种动词优势的输入特征促进儿童早期动词获得, 使得婴儿早期语言样本中动、名词理解相对比例与成人言语输入一致。这一结果表明, 婴儿词汇发展初期就已经利用言语或社会线索, 同时这种早期词汇组成中较高的动词比例进一步支持“名词优势”理论存在跨语言差异
Culture, Context, or Behavioral Control
Joint book reading provides an ecological context for examining processes involved in the emergence of cultural differences in noun and verb use. Tardif, Gelman, & Xu (1999) found that English- and Mandarin-speaking mothers differed in their relative use of nouns and verbs during joint book reading with their 20-month-olds: Mandarin-speaking mothers produced more main verbs and fewer common nouns than did English-speaking mothers. We sought to cl…
English- and Chinese-learning infants map novel labels to objects and actions differently
Research based on naturalistic and checklist methods has revealed differences between English and Chinese monolingual children in their trajectories of learning nouns and verbs. However, studies based on controlled laboratory designs (e.g., Imai et al., 2008) have yielded a more mixed picture. Guided by a multidimensional view of word learning (in which different mechanisms are weighted and recruited to different extents over development), we exa…
Acquisition of generic noun phrases in Chinese
English-speaking children understand and produce generic expressions in the preschool years, but there are cross-linguistic differences in how generics are expressed. Three studies examined interpretation of generic noun phrases in three- to seven-year-old child ( N =192) and adult speakers ( N =163) of Mandarin Chinese. Contrary to suggestions by Bloom (1981), Chinese-speaking adults honor a clear distinction between generics (expressed as bare …
Phonological skills and vocabulary knowledge mediate socioeconomic status effects in predicting reading outcomes for Chinese children
This study examined the relations among socioeconomic status (SES), early phonological processing, vocabulary, and reading in 262 children from diverse SES backgrounds followed from ages 4 to 9 in Beijing, China. SES contributed to variations in phonological skills and vocabulary in children's early development. Nonetheless, early phonological and vocabulary abilities exerted equally strong and independent mediation of the SES effects on children…
Knowing better
This article examined the ability of young children to adapt their trust in testimony in relation to the strength of their prior knowledge across 2 cultures and 2 age groups. Kindergartners and second graders in the United States and Hong Kong (N = 128) viewed pictures of objects and made category judgments about each object: first, in the presence of a teacher who provided labels that conflicted with their prior knowledge, and again, in a pedago…
Relations between temperament and theory of mind development in the United States and China
The emotional reactivity hypothesis holds that, over the course of phylogeny, the selection of animals with less reactive temperaments supported the development of sophisticated social-cognitive skills in several species, including humans (Hare, 2007). In the ontogenetic human case, an emotional reactivity hypothesis predicts that children with less reactive temperaments will reach certain milestones in theory-of-mind (ToM) development more quick…
English- and Mandarin-learning infants’ discrimination of actions and objects in dynamic events
The present studies examined the role of linguistic experience in directing English and Mandarin learners' attention to aspects of a visual scene. Specifically, they asked whether young language learners in these 2 cultures attend to differential aspects of a word-learning situation. Two groups of English and Mandarin learners, 6-8-month-olds (n = 65) and 17-19-month-olds (n = 91), participated in 2 studies, based on a habituation paradigm, desig…
The influence of early linguistic skills and family factors on literacy acquisition in Chinese children
Simultaneous acquisition of English and Chinese impacts children’s reliance on vocabulary, morphological and phonological awareness for reading in English
The developmental process of reading acquisition is frequently conceptualized as a self-organizing mental network consisting of lexico-semantic, phonological and orthographical components. The developmental nature of this network varies across languages and is known to impact second language learners of typologically different languages. Yet, it remains largely unknown whether such cross-linguistic differences interact within young bilingual lear…
Health Behaviors During the Covid-19 Epidemic
Control of the COVID-19 pandemic requires significant changes in people’s health behaviors. We offer this multidisciplinary perspective on the extent of compliance with social distancing recommendations and on coping with these measures around the globe in the first months of the pandemic. We present descriptive data from our survey of 17,650 respondents across 18 countries and territories in June 2020. The majority of respondents worried about c…
What’s in a word? Cross-linguistic influences on Spanish–English and Chinese–English bilingual children’s word reading development
This study investigates the cross-linguistic transfer of literacy skills in Spanish–English, Chinese–English bilingual, and English monolingual children (N = 283, 5–10 years). Research question 1 examines English literacy and asks how phonological and morpho-semantic skills contribute to word reading as a function of children's language background. Structural equation modeling revealed contrasting bilingual effects: compared to English monolingua…
Psychology (26 obras) · Linguistics (21 obras) · Language Development and Disorders (19 obras) · Reading and Literacy Development (16 obras) · Child and Animal Learning Development (15 obras) · Developmental psychology (15 obras) · Mandarin Chinese (12 obras) · Noun (10 obras) · Vocabulary (10 obras) · Cognitive psychology (8 obras)