Christina Bergmann
Biographic Data
| ID | 5763713 |
|---|---|
| NAME | Christina Bergmann |
| GIVEN NAMES | Christina |
| FAMILY NAME | Bergmann |
| SIGNATURE | BERGMANN C |
| AFFILIATIONS | Max Planck Institute for Psycholinguistics |
| ORCID | 0000-0003-2656-9070 |
| VERIFIED | Yes |
| TOTAL WORKS | 26 |
| TOTAL CITATIONS | 3 |
| AUTHOR COUNT | 26 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2012 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 1 |
Testing the relationship between preferences for infant-directed speech and vocabulary development: A multi-lab study
From early on, infants show a preference for infant-directed speech (IDS) over adult-directed speech (ADS), and exposure to IDS has been correlated with language outcome measures such as vocabulary. The present multi-laboratory study explores this issue by investigating whether there is a link between early preference for IDS and later vocabulary size. Infants’ preference for IDS was tested as part of the ManyBabies 1 project, and follow-up CDI d…
Consonant Neutralization and Vowel Space Area in Tashlhiyt Berber’s Infant-Directed Speech
Infant-Directed Speech (IDS) and Adult-Directed Speech (ADS) are two registers that can differ across multiple linguistic domains and social contexts. In languages where the phonemes’ acoustic clarity is modified, there is a typical assumption in the literature that these phonemes are either hyper - or hypo -articulated. These modifications have received considerable attention in language research, serving as the basis of proposals concerning the…
Evidence for Infant-directed Speech Preference Is Consistent Across Large-scale, Multi-site Replication and Meta-analysis
There is substantial evidence that infants prefer infant-directed speech (IDS) to adult-directed speech (ADS). The strongest evidence for this claim has come from two large-scale investigations: i) a community-augmented meta-analysis of published behavioral studies and ii) a large-scale multi-lab replication study. In this paper, we aim to improve our understanding of the IDS preference and its boundary conditions by combining and comparing these…
Patient's Perception of Digital Symptom Assessment Technologies in Rheumatology: Results From a Multicentre Study
Introduction An increasing number of digital tools, including dedicated diagnostic decision support systems (DDSS) exist to better assess new symptoms and understand when and where to seek medical care. The aim of this study was to evaluate patient's previous online assessment experiences and to compare the acceptability, usability, usefulness and potential impact of artificial intelligence (AI)-based symptom checker (Ada) and an online questionn…
A systematic review and Bayesian meta-analysis of the acoustic features of infant-directed speech
Ten easy steps to conducting transparent, reproducible meta‐analyses for infant researchers
Meta‐analyses provide researchers with an overview of the body of evidence in a topic, with quantified estimates of effect sizes and the role of moderators, and weighting studies according to their precision. We provide a guide for conducting a transparent and reproducible meta‐analysis in the field of developmental psychology within the framework of the MetaLab platform, in 10 steps: (1) Choose a topic for your meta‐analysis, (2) Formulate your …
Covid-19 first lockdown as a window into language acquisition: Associations between caregiver-child activities and vocabulary gains
The COVID-19 pandemic, and the resulting closure of daycare centers worldwide, led to unprecedented changes in children’s learning environments. This period of increased time at home with caregivers, with limited access to external sources (e.g., daycares) provides a unique opportunity to examine the associations between the caregiver-child activities and children’s language development. The vocabularies of 1742 children aged 8-36 months across 1…
A Multilab Study of Bilingual Infants: Exploring the Preference for Infant-Directed Speech
From the earliest months of life, infants prefer listening to and learn better from infant-directed speech (IDS) than adult-directed speech (ADS). Yet, IDS differs within communities, across languages, and across cultures, both in form and in prevalence. This large-scale, multi-site study used the diversity of bilingual infant experiences to explore the impact of different types of linguistic experience on infants' IDS preference. As part of the …
The development of infants’ responses to mispronunciations: A meta-analysis
As they develop into mature speakers of their native language, infants must not only learn words but also the sounds that make up those words. To do so, they must strike a balance between accepting speaker-dependent variation (e.g., mood, voice, accent) but appropriately rejecting variation when it (potentially) changes a word's meaning (e.g., cat vs. hat). This meta-analysis focuses on studies investigating infants' ability to detect mispronunci…
Theory evaluation in the age of cumulative science
Theories are a key part of the scientific process. How should we evaluate theories against evidence? The two traditional and most widespread approaches use single studies and qualitative reviews to evaluate theories; more recently, large-scale replications are used. We argue here that none of these approaches as currently implemented fits in with cumulative science tenets. We propose instead the use of online and transparent Community-Augmented M…
A meta-analytic approach to evaluating the explanatory adequacy of theories
Theories are a key part of the scientific process. How should we evaluate theories against evidence? The two traditional and most widespread approaches use single studies and qualitative reviews to evaluate theories; more recently, large-scale replications entered the picture. We argue here that none of these approaches fits in with cumulative science tenets. We propose instead Community-Augmented Meta-Analyses (CAMAs) which are cumulative and op…
A multi-lab study of bilingual infants: Exploring the preference for infant-directed speech
From the earliest months of life, infants prefer listening to and learn better from infant-directed speech (IDS) than adult-directed speech (ADS). Yet, IDS differs within communities, across languages, and across cultures, both in form and in prevalence. This large-scale, multi-site study used the diversity of bilingual infant experiences to explore the impact of different types of linguistic experience on infants’ IDS preference. As part of the …
Quantifying Sources of Variability in Infancy Research Using the Infant-Directed-Speech Preference
Psychological scientists have become increasingly concerned with issues related to methodology and replicability, and infancy researchers in particular face specific challenges related to replicability: For example, high-powered studies are difficult to conduct, testing conditions vary across labs, and different labs have access to different infant populations. Addressing these concerns, we report on a large-scale, multisite study aimed at (a) as…
Addressing Publication Bias in Meta-Analysis: Empirical Findings From Community-Augmented Meta-Analyses of Infant Language Development
Meta-analyses are an indispensable research synthesis tool for characterizing bodies of literature and advancing theories. One important open question concerns the inclusion of unpublished data into meta-analyses. Finding such studies can be effortful, but their exclusion potentially leads to consequential biases like overestimation of a literature’s mean effect. We address two questions about unpublished data using MetaLab, a collection of commu…
Preregistration in infant research—A primer
Preregistration, the act of specifying a research plan in advance, is becoming more common in scientific research. Infant researchers contend with unique problems that might make preregistration particularly challenging. Infants are a hard‐to‐reach population, usually yielding small sample sizes, they can only complete a limited number of trials, and they can be excluded based on hard‐to‐predict complications (e.g., parental interference, fussine…
Addressing publication bias in meta-analysis: Empirical findings from community-augmented meta-analyses of infant language development
Meta-analyses are an indispensable research synthesis tool for characterizing bodies of literature and advancing theories. One important open question concerns the inclusion of unpublished data into meta-analyses. Finding such studies can be effortful, but their exclusion potentially leads to consequential biases like overestimation of a literature’s mean effect. We address two key questions using MetaLab, a collection of community-augmented meta…
The development of infants’ responses to mispronunciations: A Meta-Analysis
As they develop into mature speakers of their native language, infants must not only learn words but also the sounds that make up those words. To do so, they must strike a balance between accepting speaker dependent variation (e.g. mood, voice, accent), but appropriately rejecting variation when it (potentially) changes a word's meaning (e.g. cat vs. hat). This meta-analysis focuses on studies investigating infants' ability to detect mispronuncia…
What’s in a looking time preference
Looking time preference methods are an ubiquitous tool for tapping into infants' early skills and knowledge. However, predicting what preference infants will show in these paradigms can be difficult, and studies investigating the same ability oftentimes report opposing patterns of preference. For example, most studies investigating infant pattern learning report preferences for novel stimuli, but some report preference for familiar stimuli. How s…
Promoting replicability in developmental research through meta-analyses: Insights from language acquisition research
Previous work suggests key factors for replicability, a necessary feature for theory building, include statistical power and appropriate research planning. These factors are examined by analyzing a collection of 12 standardized meta-analyses on language development between birth and 5 years. With a median effect size of Cohen's d = 0.45 and typical sample size of 18 participants, most research is underpowered (range: 6%-99%; median 44%); and calc…
Environmental Influences on Infants’ Native Vowel Discrimination: The Case of Talker Number in Daily Life
Both quality and quantity of speech from the primary caregiver have been found to impact language development. A third aspect of the input has been largely ignored: the number of talkers who provide input. Some infants spend most of their waking time with only one person; others hear many different talkers. Even if the very same words are spoken the same number of times, the pronunciations can be more variable when several talkers pronounce them.…
A Collaborative Approach to Infant Research: Promoting Reproducibility, Best Practices, and Theory‐Building
The ideal of scientific progress is that we accumulate measurements and integrate these into theory, but recent discussion of replicability issues has cast doubt on whether psychological research conforms to this model. Developmental research—especially with infant participants—also has discipline‐specific replicability challenges, including small samples and limited measurement methods. Inspired by collaborative replication efforts in cognitive …
Environmental influences on infants’ native vowel discrimination: The case of talker number in daily life
Both quality and quantity of speech from the primary caregiver have been found to impact language development. A third aspect of the input has been largely ignored: the number of talkers who provide input. Some infants spend most of their waking time with only one person; others hear many different talkers. Even if the very same words are spoken the same number of times, the pronunciations can be more variable when several talkers pronounce them.…
A Quantitative Synthesis of Early Language Acquisition Using Meta-Analysis
To acquire a language, children must learn a range of skills, from the sounds of their language to the meanings of words. These skills are typically studied in isolation in separate research programs, but there is a growing body of evidence that these skills may depend on each other in acquisition (e.g., Feldman, Myers, White, Griffiths, & Morgan, 2013; Johnson, Demuth, Jones, & Black, 2010; Shukla, White, & Aslin, 2011). We suggest that the meta…
Development of infants' segmentation of words from native speech: A meta‐analytic approach
Infants start learning words, the building blocks of language, at least by 6 months. To do so, they must be able to extract the phonological form of words from running speech. A rich literature has investigated this process, termed word segmentation. We addressed the fundamental question of how infants of different ages segment words from their native language using a meta-analytic approach. Based on previous popular theoretical and experimental …
Community-Augmented Meta-Analyses: Toward Cumulative Data Assessment
We present the concept of a community-augmented meta-analysis (CAMA), a simple yet novel tool that significantly facilitates the accumulation and evaluation of previous studies within a specific scientific field. A CAMA is a combination of a meta-analysis and an open repository. Like a meta-analysis, it is centered around a psychologically relevant topic and includes methodological details and standardized effect sizes. As in a repository, data d…
The development of infants’ responses to mispronunciations: A meta-analysis
As they develop into mature speakers of their native language, infants must not only learn words but also the sounds that make up those words. To do so, they must strike a balance between accepting speaker-dependent variation (e.g., mood, voice, accent) but appropriately rejecting variation when it (potentially) changes a word's meaning (e.g., cat vs. hat). This meta-analysis focuses on studies investigating infants' ability to detect mispronunci…
Preschoolers' comprehension of pronouns and reflexives: The impact of the task
Pronouns seem to be acquired in an asymmetrical way, where children confuse the meaning of pronouns with reflexives up to the age of six, but not vice versa. Children's production of the same referential expressions is appropriate at the age of four. However, response-based tasks, the usual means to investigate child language comprehension, are very demanding given children's limited cognitive resources. Therefore, they might affect performance. …
Community-Augmented Meta-Analyses: Toward Cumulative Data Assessment
We present the concept of a community-augmented meta-analysis (CAMA), a simple yet novel tool that significantly facilitates the accumulation and evaluation of previous studies within a specific scientific field. A CAMA is a combination of a meta-analysis and an open repository. Like a meta-analysis, it is centered around a psychologically relevant topic and includes methodological details and standardized effect sizes. As in a repository, data d…
Development of infants' segmentation of words from native speech: A meta‐analytic approach
Infants start learning words, the building blocks of language, at least by 6 months. To do so, they must be able to extract the phonological form of words from running speech. A rich literature has investigated this process, termed word segmentation. We addressed the fundamental question of how infants of different ages segment words from their native language using a meta-analytic approach. Based on previous popular theoretical and experimental …
Environmental influences on infants’ native vowel discrimination: The case of talker number in daily life
Both quality and quantity of speech from the primary caregiver have been found to impact language development. A third aspect of the input has been largely ignored: the number of talkers who provide input. Some infants spend most of their waking time with only one person; others hear many different talkers. Even if the very same words are spoken the same number of times, the pronunciations can be more variable when several talkers pronounce them.…
A Quantitative Synthesis of Early Language Acquisition Using Meta-Analysis
To acquire a language, children must learn a range of skills, from the sounds of their language to the meanings of words. These skills are typically studied in isolation in separate research programs, but there is a growing body of evidence that these skills may depend on each other in acquisition (e.g., Feldman, Myers, White, Griffiths, & Morgan, 2013; Johnson, Demuth, Jones, & Black, 2010; Shukla, White, & Aslin, 2011). We suggest that the meta…
A Collaborative Approach to Infant Research: Promoting Reproducibility, Best Practices, and Theory‐Building
The ideal of scientific progress is that we accumulate measurements and integrate these into theory, but recent discussion of replicability issues has cast doubt on whether psychological research conforms to this model. Developmental research—especially with infant participants—also has discipline‐specific replicability challenges, including small samples and limited measurement methods. Inspired by collaborative replication efforts in cognitive …
Promoting replicability in developmental research through meta-analyses: Insights from language acquisition research
Previous work suggests key factors for replicability, a necessary feature for theory building, include statistical power and appropriate research planning. These factors are examined by analyzing a collection of 12 standardized meta-analyses on language development between birth and 5 years. With a median effect size of Cohen's d = 0.45 and typical sample size of 18 participants, most research is underpowered (range: 6%-99%; median 44%); and calc…
Environmental Influences on Infants’ Native Vowel Discrimination: The Case of Talker Number in Daily Life
Both quality and quantity of speech from the primary caregiver have been found to impact language development. A third aspect of the input has been largely ignored: the number of talkers who provide input. Some infants spend most of their waking time with only one person; others hear many different talkers. Even if the very same words are spoken the same number of times, the pronunciations can be more variable when several talkers pronounce them.…
Addressing publication bias in meta-analysis: Empirical findings from community-augmented meta-analyses of infant language development
Meta-analyses are an indispensable research synthesis tool for characterizing bodies of literature and advancing theories. One important open question concerns the inclusion of unpublished data into meta-analyses. Finding such studies can be effortful, but their exclusion potentially leads to consequential biases like overestimation of a literature’s mean effect. We address two key questions using MetaLab, a collection of community-augmented meta…
The development of infants’ responses to mispronunciations: A Meta-Analysis
As they develop into mature speakers of their native language, infants must not only learn words but also the sounds that make up those words. To do so, they must strike a balance between accepting speaker dependent variation (e.g. mood, voice, accent), but appropriately rejecting variation when it (potentially) changes a word's meaning (e.g. cat vs. hat). This meta-analysis focuses on studies investigating infants' ability to detect mispronuncia…
What’s in a looking time preference
Looking time preference methods are an ubiquitous tool for tapping into infants' early skills and knowledge. However, predicting what preference infants will show in these paradigms can be difficult, and studies investigating the same ability oftentimes report opposing patterns of preference. For example, most studies investigating infant pattern learning report preferences for novel stimuli, but some report preference for familiar stimuli. How s…
Theory evaluation in the age of cumulative science
Theories are a key part of the scientific process. How should we evaluate theories against evidence? The two traditional and most widespread approaches use single studies and qualitative reviews to evaluate theories; more recently, large-scale replications are used. We argue here that none of these approaches as currently implemented fits in with cumulative science tenets. We propose instead the use of online and transparent Community-Augmented M…
A meta-analytic approach to evaluating the explanatory adequacy of theories
Theories are a key part of the scientific process. How should we evaluate theories against evidence? The two traditional and most widespread approaches use single studies and qualitative reviews to evaluate theories; more recently, large-scale replications entered the picture. We argue here that none of these approaches fits in with cumulative science tenets. We propose instead Community-Augmented Meta-Analyses (CAMAs) which are cumulative and op…
A multi-lab study of bilingual infants: Exploring the preference for infant-directed speech
From the earliest months of life, infants prefer listening to and learn better from infant-directed speech (IDS) than adult-directed speech (ADS). Yet, IDS differs within communities, across languages, and across cultures, both in form and in prevalence. This large-scale, multi-site study used the diversity of bilingual infant experiences to explore the impact of different types of linguistic experience on infants’ IDS preference. As part of the …
Quantifying Sources of Variability in Infancy Research Using the Infant-Directed-Speech Preference
Psychological scientists have become increasingly concerned with issues related to methodology and replicability, and infancy researchers in particular face specific challenges related to replicability: For example, high-powered studies are difficult to conduct, testing conditions vary across labs, and different labs have access to different infant populations. Addressing these concerns, we report on a large-scale, multisite study aimed at (a) as…
Addressing Publication Bias in Meta-Analysis: Empirical Findings From Community-Augmented Meta-Analyses of Infant Language Development
Meta-analyses are an indispensable research synthesis tool for characterizing bodies of literature and advancing theories. One important open question concerns the inclusion of unpublished data into meta-analyses. Finding such studies can be effortful, but their exclusion potentially leads to consequential biases like overestimation of a literature’s mean effect. We address two questions about unpublished data using MetaLab, a collection of commu…
Preregistration in infant research—A primer
Preregistration, the act of specifying a research plan in advance, is becoming more common in scientific research. Infant researchers contend with unique problems that might make preregistration particularly challenging. Infants are a hard‐to‐reach population, usually yielding small sample sizes, they can only complete a limited number of trials, and they can be excluded based on hard‐to‐predict complications (e.g., parental interference, fussine…
Covid-19 first lockdown as a window into language acquisition: Associations between caregiver-child activities and vocabulary gains
The COVID-19 pandemic, and the resulting closure of daycare centers worldwide, led to unprecedented changes in children’s learning environments. This period of increased time at home with caregivers, with limited access to external sources (e.g., daycares) provides a unique opportunity to examine the associations between the caregiver-child activities and children’s language development. The vocabularies of 1742 children aged 8-36 months across 1…
A Multilab Study of Bilingual Infants: Exploring the Preference for Infant-Directed Speech
From the earliest months of life, infants prefer listening to and learn better from infant-directed speech (IDS) than adult-directed speech (ADS). Yet, IDS differs within communities, across languages, and across cultures, both in form and in prevalence. This large-scale, multi-site study used the diversity of bilingual infant experiences to explore the impact of different types of linguistic experience on infants' IDS preference. As part of the …
The development of infants’ responses to mispronunciations: A meta-analysis
As they develop into mature speakers of their native language, infants must not only learn words but also the sounds that make up those words. To do so, they must strike a balance between accepting speaker-dependent variation (e.g., mood, voice, accent) but appropriately rejecting variation when it (potentially) changes a word's meaning (e.g., cat vs. hat). This meta-analysis focuses on studies investigating infants' ability to detect mispronunci…
Patient's Perception of Digital Symptom Assessment Technologies in Rheumatology: Results From a Multicentre Study
Introduction An increasing number of digital tools, including dedicated diagnostic decision support systems (DDSS) exist to better assess new symptoms and understand when and where to seek medical care. The aim of this study was to evaluate patient's previous online assessment experiences and to compare the acceptability, usability, usefulness and potential impact of artificial intelligence (AI)-based symptom checker (Ada) and an online questionn…
A systematic review and Bayesian meta-analysis of the acoustic features of infant-directed speech
Ten easy steps to conducting transparent, reproducible meta‐analyses for infant researchers
Meta‐analyses provide researchers with an overview of the body of evidence in a topic, with quantified estimates of effect sizes and the role of moderators, and weighting studies according to their precision. We provide a guide for conducting a transparent and reproducible meta‐analysis in the field of developmental psychology within the framework of the MetaLab platform, in 10 steps: (1) Choose a topic for your meta‐analysis, (2) Formulate your …
Evidence for Infant-directed Speech Preference Is Consistent Across Large-scale, Multi-site Replication and Meta-analysis
There is substantial evidence that infants prefer infant-directed speech (IDS) to adult-directed speech (ADS). The strongest evidence for this claim has come from two large-scale investigations: i) a community-augmented meta-analysis of published behavioral studies and ii) a large-scale multi-lab replication study. In this paper, we aim to improve our understanding of the IDS preference and its boundary conditions by combining and comparing these…
Testing the relationship between preferences for infant-directed speech and vocabulary development: A multi-lab study
From early on, infants show a preference for infant-directed speech (IDS) over adult-directed speech (ADS), and exposure to IDS has been correlated with language outcome measures such as vocabulary. The present multi-laboratory study explores this issue by investigating whether there is a link between early preference for IDS and later vocabulary size. Infants’ preference for IDS was tested as part of the ManyBabies 1 project, and follow-up CDI d…
Psychology (20 works) · Computer Science (16 works) · Language Development and Disorders (15 works) · Cognitive psychology (11 works) · Developmental psychology (11 works) · Linguistics (11 works) · Medicine (9 works) · Artificial Intelligence (8 works) · Data science (7 works) · Child and Animal Learning Development (6 works)