A comparison of the performance of normal middle social class Egyptian infants and toddlers with the reference norms of the Bayley Scales -third edition (Bayley III): A pilot study

• Ebtissam M. Salah El-Din,

  Roles Conceptualization, Project administration, Writing – review & editing

  Affiliation Child Health Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt

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• Zeinab M. Monir,

  Roles Conceptualization, Project administration, Writing – review & editing

  Affiliation Child Health Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt

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• Manal A. Shehata ,

  Roles Data curation, Investigation, Writing – original draft

  * E-mail: dr_manalabdelkader@hotmail.com

  Affiliation Child Health Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt

  https://orcid.org/0000-0001-8749-7010

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• Marwa W. Abouelnaga,

  Roles Data curation, Investigation, Writing – original draft

  Affiliation Child Health Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt

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• Mones M. Abushady,

  Roles Formal analysis, Methodology, Supervision, Writing – review & editing

  Affiliation Child Health Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt

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• Mai M. Youssef,

  Roles Conceptualization, Data curation, Formal analysis, Writing – review & editing

  Affiliation Child Health Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt

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• Hala S. Megahed,

  Roles Data curation, Investigation, Writing – review & editing

  Affiliation Child Health Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt

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• Samar M. E. Salem,

  Roles Data curation, Formal analysis, Investigation, Writing – review & editing

  Affiliation Child Health Department, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt

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• Ammal M. Metwally

  Roles Conceptualization, Methodology, Writing – review & editing

  Affiliation Department of Community Medicine Research, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt

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