Parent Reports of Young Spanish–English Bilingual Children's Productive Vocabulary: A Development and Validation Study Purpose This 2-phase study aims to extend research on parent report measures of children's productive vocabulary by investigating the development (n = 38) of the Spanish Vocabulary Extension and validity (n = 194) of the 100-item Spanish and English MacArthur-Bates Communicative Development Inventories Toddler Short Forms and Upward Extension (Fenson ... Research Article
Research Article  |   January 01, 2016
Parent Reports of Young Spanish–English Bilingual Children's Productive Vocabulary: A Development and Validation Study
 
Author Affiliations & Notes
  • Jeannette Mancilla-Martinez
    Vanderbilt University, Nashville, TN
  • Perla B. Gámez
    Loyola University, Chicago, IL
  • Shaher Banu Vagh
    Assessment Survey Evaluation Research Centre, New Delhi, India
  • Nonie K. Lesaux
    Harvard Graduate School of Education, Cambridge, MA
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication. ×
  • Correspondence to Jeannette Mancilla-Martinez: jeannette.mancilla-martinez@vanderbilt.edu
  • Editor: Marilyn Nippold
    Editor: Marilyn Nippold×
  • Associate Editor: Mary Alt
    Associate Editor: Mary Alt×
Article Information
Development / Cultural & Linguistic Diversity / Research Articles
Research Article   |   January 01, 2016
Parent Reports of Young Spanish–English Bilingual Children's Productive Vocabulary: A Development and Validation Study
Language, Speech, and Hearing Services in Schools, January 2016, Vol. 47, 1-15. doi:10.1044/2015_LSHSS-15-0013
History: Received March 16, 2015 , Revised May 27, 2015 , Accepted June 22, 2015
 
Language, Speech, and Hearing Services in Schools, January 2016, Vol. 47, 1-15. doi:10.1044/2015_LSHSS-15-0013
History: Received March 16, 2015; Revised May 27, 2015; Accepted June 22, 2015

Purpose This 2-phase study aims to extend research on parent report measures of children's productive vocabulary by investigating the development (n = 38) of the Spanish Vocabulary Extension and validity (n = 194) of the 100-item Spanish and English MacArthur-Bates Communicative Development Inventories Toddler Short Forms and Upward Extension (Fenson et al., 2000, 2007; Jackson-Maldonado, Marchman, & Fernald, 2013) and the Spanish Vocabulary Extension for use with parents from low-income homes and their 24- to 48-month-old Spanish–English bilingual children.

Method Study participants were drawn from Early Head Start and Head Start collaborative programs in the Northeastern United States in which English was the primary language used in the classroom. All families reported Spanish or Spanish–English as their home language(s). The MacArthur Communicative Development Inventories as well as the researcher-designed Spanish Vocabulary Extension were used as measures of children's English and Spanish productive vocabularies.

Results Findings revealed the forms' concurrent and discriminant validity, on the basis of standardized measures of vocabulary, as measures of productive vocabulary for this growing bilingual population.

Conclusion These findings suggest that parent reports, including our researcher-designed form, represent a valid, cost-effective mechanism for vocabulary monitoring purposes in early childhood education settings.

Acknowledgments
This research was supported by Administration for Children, Youth and Families/Head Start Bureau Grant 90YF0064/02, awarded to to Barbara Alexander Pan and Nonie K. Lesaux. The authors express their appreciation to participating families.
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