Sustained effects of an early childhood language and literacy intervention through second grade: Longitudinal findings of the SPELL trial in Denmark

• Dorthe Bleses ,

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Writing – original draft

  * E-mail: bleses@cc.au.dk

  Affiliations School of Communication and Culture, Aarhus University, Aarhus C, Denmark, TrygFonden’s Centre for Child Research, Aarhus University, Aarhus C, Denmark, Department of Economics and Business Economics, Aarhus University, Aarhus C, Denmark, Centre for Integrated Register-Based Research, CIRRAU, Aarhus University, Aarhus C, Denmark

  https://orcid.org/0000-0003-1670-4742

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• Philip S. Dale,

  Roles Conceptualization, Investigation, Methodology, Writing – original draft

  Affiliation Department of Speech & Hearing Sciences, University of New Mexico, Albuquerque, NM, United States of America

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• Laura Justice,

  Roles Conceptualization, Investigation, Methodology, Writing – original draft

  Affiliation Crane Center of Early Childhood Research and Policy, Ohio State University, Columbus, OH, United States of America

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• Anders Højen,

  Roles Conceptualization, Investigation, Methodology, Writing – review & editing

  Affiliations School of Communication and Culture, Aarhus University, Aarhus C, Denmark, TrygFonden’s Centre for Child Research, Aarhus University, Aarhus C, Denmark, Department of Economics and Business Economics, Aarhus University, Aarhus C, Denmark, Centre for Integrated Register-Based Research, CIRRAU, Aarhus University, Aarhus C, Denmark

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• Benedicte D. Vind,

  Roles Data curation, Methodology, Writing – original draft

  Affiliations TrygFonden’s Centre for Child Research, Aarhus University, Aarhus C, Denmark, Department of Economics and Business Economics, Aarhus University, Aarhus C, Denmark, Centre for Integrated Register-Based Research, CIRRAU, Aarhus University, Aarhus C, Denmark

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• Hui Jiang

  Roles Methodology, Writing – review & editing

  Affiliation Crane Center of Early Childhood Research and Policy, Ohio State University, Columbus, OH, United States of America

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