Examining group differences in between-participant variability in non-native speech sound learning

  • Many studies on non-native speech sound learning report a large amount of between-participant variability. This variability allows us to ask interesting questions about non-native speech sound learning, such as whether certain training paradigms give rise to more or less between-participant variability. This study presents a reanalysis of Fuhrmeister and Myers (Attention, Perception, and Psychophysics, 82(4), 2049-2065, 2020) and tests whether different types of phonetic training lead to group differences in between-participant variability. The original study trained participants on a non-native speech sound contrast in two different phonological (vowel) contexts and tested for differences in means between a group that received blocked training (one vowel context at a time) and interleaved training (vowel contexts were randomized). No statistically significant differences in means were found between the two groups in the original study on a discrimination test (a same-different judgment). However, the current reanalysis tested groupMany studies on non-native speech sound learning report a large amount of between-participant variability. This variability allows us to ask interesting questions about non-native speech sound learning, such as whether certain training paradigms give rise to more or less between-participant variability. This study presents a reanalysis of Fuhrmeister and Myers (Attention, Perception, and Psychophysics, 82(4), 2049-2065, 2020) and tests whether different types of phonetic training lead to group differences in between-participant variability. The original study trained participants on a non-native speech sound contrast in two different phonological (vowel) contexts and tested for differences in means between a group that received blocked training (one vowel context at a time) and interleaved training (vowel contexts were randomized). No statistically significant differences in means were found between the two groups in the original study on a discrimination test (a same-different judgment). However, the current reanalysis tested group differences in between-participant variability and found greater variability in the blocked training group immediately after training because this group had a larger proportion of participants with higher-than-average scores. After a period of offline consolidation, this group difference in variability decreased substantially. This suggests that the type and difficulty of phonetic training (blocked vs. interleaved) may initially give rise to differences in between-participant variability, but offline consolidation may attenuate that variability and have an equalizing effect across participants. This reanalysis supports the view that examining between-participant variability in addition to means when analyzing data can give us a more complete picture of the effects being tested.show moreshow less

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Metadaten
Author details:Pamela FuhrmeisterORCiD
DOI:https://doi.org/10.3758/s13414-021-02311-3
ISSN:1943-3921
ISSN:1943-393X
Pubmed ID:https://pubmed.ncbi.nlm.nih.gov/34089165
Title of parent work (English):Attention, perception, & psychophysics : AP&P ; a journal of the Psychonomic Society, Inc.
Publisher:Springer
Place of publishing:New York
Publication type:Article
Language:English
Date of first publication:2021/06/04
Publication year:2021
Release date:2022/09/21
Tag:Heterogeneity; Individual differences; Non-native speech sound learning; of variance
Volume:83
Issue:5
Number of pages:7
First page:1935
Last Page:1941
Funding institution:National Science FoundationNational Science Foundation (NSF) [NSF BCS 1554510]
Organizational units:Humanwissenschaftliche Fakultät / Strukturbereich Kognitionswissenschaften / Department Linguistik
DDC classification:1 Philosophie und Psychologie / 15 Psychologie / 150 Psychologie
Peer review:Referiert
Publishing method:Open Access / Hybrid Open-Access
License (German):License LogoCC-BY - Namensnennung 4.0 International
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