Content validity of measures in early numeracy in children up to eight years: A COSMIN systematic review

• Renée Speyer,

  Roles Conceptualization, Data curation, Methodology, Project administration, Supervision, Validation, Writing – original draft, Writing – review & editing

  Affiliations School of Health Sciences, College of Medicine, Nursing & Health Sciences, University of Galway, Galway, Ireland, Curtin School of Allied Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia, Department of Special Needs Education, University of Oslo, Oslo, Norway

  https://orcid.org/0000-0003-2828-8897

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• Airi Hakkarainen,

  Roles Conceptualization, Data curation, Project administration, Writing – review & editing

  Affiliations Department of Education, University of Jyväskylä, Jyväskylä, Finland, Department of Education, University of Helsinki, Helsinki, Finland

  https://orcid.org/0000-0001-5199-3493

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• Sangwon Yoon,

  Roles Data curation, Methodology, Project administration, Validation, Writing – review & editing

  Affiliation Department of Special Needs Education, University of Oslo, Oslo, Norway

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• Jae-Hyun Kim,

  Roles Data curation, Methodology, Project administration, Validation, Writing – review & editing

  Affiliation Department of Linguistics, Macquarie University, Sydney, New South Wales, Australia

  https://orcid.org/0000-0002-3512-5837

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• Catriona Windsor,

  Roles Data curation, Project administration, Writing – review & editing

  Affiliation Department of Special Needs Education, University of Oslo, Oslo, Norway

  https://orcid.org/0000-0001-5504-6370

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• Sarah Wilkes Gillan,

  Roles Data curation, Project administration, Writing – review & editing

  Affiliation Discipline of Occupational Therapy, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia

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• David Littlefair,

  Roles Data curation, Project administration, Writing – review & editing

  Affiliation Department of Social Work, Education and Community Wellbeing, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, Tyne and Wear, United Kingdom

  https://orcid.org/0000-0001-5342-493X

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• Reinie Cordier

  Roles Conceptualization, Data curation, Methodology, Project administration, Supervision, Validation, Writing – original draft, Writing – review & editing

  * E-mail: d.littlefair@northumbria.ac.uk

  Affiliations Curtin School of Allied Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia, Department of Social Work, Education and Community Wellbeing, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, Tyne and Wear, United Kingdom, Department of Health & Rehabilitation Sciences, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa

  https://orcid.org/0000-0002-9906-5300

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