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1. Testing the Relationship Between Preferences for Infant-Directed Speech and Vocabulary Development: A Multi-Lab Study

Author

Soderstrom M, Rocha-Hidalgo J, Munoz LE, Bochynska A, Werker JF, Skarabela B, Seidl A, Searle A, Ryjova Y, Rennels JL, Potter C, Paulus M, Ota M, Noble C, Nave C, Mayor J, Martin A, Machon LC, Lew-Williams C, Ko ES, Kim H, Kartushina N, Kammermeier M, Jessop A, Hay JF, Hannon EE, Hamlin JK, Havron N, Gonzalez-Gomez N, Gonzalez-Barrero AM, Gampe A, Fritzsche T, Frank MC, Floccia C, Durrant S, Delle Luche C, Davies C, Cashon C, Byers-Heinlein K, Black AK, Bergmann C, Anderson L, AlShakhori MK, Al-Hoorie AH, & Sin Mei Tsui Az, Soderstrom M, Rocha-Hidalgo J, Munoz LE, Bochynska A, Werker JF, Skarabela B, Seidl A, Searle A, Ryjova Y, Rennels JL, Potter C, Paulus M, Ota M, and Noble C, Nave C, Mayor J, Martin A, Machon LC, Lew-Williams C, Ko ES, Kim H, Kartushina N, Kammermeier M, Jessop A, Hay JF, Hannon EE, Hamlin JK, Havron N, Gonzalez-Gomez N, Gonzalez-Barrero AM, Gampe A, Fritzsche T, Frank MC, Floccia C, Durrant S, Delle Luche C, Davies C, Cashon C, Byers-Heinlein K, Black AK, Bergmann C, Anderson L, AlShakhori MK, Al-Hoorie AH, & Sin Mei Tsui Az

Abstract

From early in life, infants show a preference for infant-directed speech (IDS) over adult-directed speech (ADS), and exposure to IDS has been correlated with different 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 ManyBabies1 project, and follow-up CDI data were collected from a subsample of this dataset at 18 and 24 months. A total of 341 (18 months) and 327 (24 months) infants were tested across 21 laboratories. In neither preregistered analyses with North American and UK English, nor exploratory analyses with a larger sample did we find evidence for a relation between IDS preference and later vocabulary (Bayes Factor analysis was inconclusive). We discuss the implications of this finding in light of recent work suggesting that IDS preference measured in the laboratory has low test-retest reliability.

2. Testing the relationship between preferences for infant-directed speech and vocabulary development: A multi-lab study.

Author

Soderstrom M, Rocha-Hidalgo J, Muñoz LE, Bochynska A, Werker JF, Skarabela B, Seidl A, Ryjova Y, Rennels JL, Potter CE, Paulus M, Ota M, Olesen NM, Nave KM, Mayor J, Martin A, Machon LC, Lew-Williams C, Ko ES, Kim H, Kartushina N, Kammermeier M, Jessop A, Hay JF, Havron N, Hannon EE, Kiley Hamlin J, Gonzalez-Gomez N, Gampe A, Fritzsche T, Frank MC, Durrant S, Davies C, Cashon C, Byers-Heinlein K, Boyce V, Black AK, Bergmann C, Anderson L, Alshakhori MK, Al-Hoorie AH, and Tsui ASM

Abstract

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 data were collected from a subsample of this dataset at 18 and 24 months. A total of 341 (18 months) and 327 (24 months) infants were tested across 21 laboratories. In neither preregistered analyses with North American and UK English, nor exploratory analyses with a larger sample did we find evidence for a relation between IDS preference and later vocabulary. We discuss implications of this finding in light of recent work suggesting that IDS preference measured in the laboratory has low test-retest reliability.

Published
2024
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3. Systems scenarios: a tool for facilitating the socio-technical design of work systems.

Author

Hughes HPN, Clegg CW, Bolton LE, and Machon LC

Subjects
Consensus, Group Processes, Humans, Organizational Objectives, Stakeholder Participation, Systems Theory, Task Performance and Analysis, Telemedicine, Ergonomics methods, Models, Theoretical, Systems Analysis
Abstract

The socio-technical systems approach to design is well documented. Recognising the benefits of this approach, organisations are increasingly trying to work with systems, rather than their component parts. However, few tools attempt to analyse the complexity inherent in such systems, in ways that generate useful, practical outputs. In this paper, we outline the 'System Scenarios Tool' (SST), which is a novel, applied methodology that can be used by designers, end-users, consultants or researchers to help design or re-design work systems. The paper introduces the SST using examples of its application, and describes the potential benefits of its use, before reflecting on its limitations. Finally, we discuss potential opportunities for the tool, and describe sets of circumstances in which it might be used. Practitioner Summary: The paper presents a novel, applied methodological tool, named the 'Systems Scenarios Tool'. We believe this tool can be used as a point of reference by designers, end-users, consultants or researchers, to help design or re-design work systems. Included in the paper are two worked examples, demonstrating the tool's application.

Published
2017
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