References
- American Speech-Language-Hearing Association. (2007). Childhood apraxia of speech [Position statement]. Available from www.asha.org/policy.
- Bernthal, J. E., Bankson, N. W., & Flipsen, P., Jr. (2009). Articulation and phonological disorders: Speech sound disorders in children (6th edn.). Boston: Pearson.
- Bradford, A., & Dodd, B. (1994). The motor planning abilities of phonologically disordered children. European Journal of Disorders of Communication, 29, 349–369.
- Burt, L., Holm, A., & Dodd, B. (1999). Phonological awareness skills of 4-year-old British children: An assessment and developmental data. International Journal of Language and Communication Disorders, 34(3), 311–335.
- Dale, P. S., & Fenson, L. (1996). Lexical development norms for young children. Behavior Research Methods, Instruments, & Computers, 28, 125–127.
- Dodd, B. (1995). Differential diagnosis and treatment of children with speech disorder. London: Whurr.
- Dodd, B. (2005). Differential diagnosis and treatment of children with speech disorder. London: Whurr.
- Fenson, L., Marchman, V. A., Thal, D. J., Dale, P. S., Reznick, J. S., & Bates, E. (2007). MacArthur-Bates Communicative Development Inventories (2nd edn.). Baltimore: Brookes.
- Ferguson, C. A., & Farwell, C. B. (1975). Words and sounds in early language acquisition. Language, 51(2), 419–439.
- van Geert, P., & van Dijk, M. (2002). Focus on variability: New tools to study intra-individual variability in developmental data. Infant Behavior & Development, 25, 340–374.
- Hollingshead, A. B. (1975). Four-factor index of social status. Unpublished working paper. New Haven, CT: Department of Sociology, Yale University.
- Holm, A., Crosbie, S., & Dodd, B. (2007). Differentiating normal variability from inconsistency in children's speech: Normative data. International Journal of Language and Communication Disorders, 42(4), 467–486.
- Holm, A., Farrier, F., & Dodd, B. (2008). Phonological awareness, reading accuracy and spelling ability of children with inconsistent phonological disorder. International Journal of Language and Communication Disorders, 43(3), 300–322.
- Ingram, D. (2002). The measurement of whole-word productions. Journal of Child Language, 29, 713–733.
- Kent, R. D. (1992). The biology of phonological development. In C. A. Ferguson, L. Menn, & C. Stoel-Gammon (Eds.), Phonological development: Models, research, implications (pp. 65–90). Timonium, MD: York Press.
- Leonard, L. B., Rowan, L. E., Morris, B., & Fey, M. E. (1982). Intra-word phonological variability in young children. Journal of Child Language, 9, 55–69.
- McLeod, S., & Hewett, S. R. (2008). Variability in the production of words containing consonant clusters by typical 2- and 3-year-old children. Folia Phoniatrica et Logopaedica, 60, 163–172.
- Schmitt, L. S., Howard, B. H., & Schmitt, J. F. (1983). Conversational speech sampling in the assessment of articulation proficiency. Language, Speech, and Hearing Services in Schools, 14, 210–214.
- Schwartz, R. G., Leonard, L. B., Folger, M. K., & Wilcox, M. J. (1980). Early phonological behavior in normal-speaking and language disordered children: Evidence for a synergistic view of linguistic disorders. Journal of Speech and Hearing Disorders, 45, 357–377.
- Smit, A. B., Hand, L., Freilinger, J. J., Bernthal, J. E., & Bird, A. (1990). The Iowa articulation norms project and its Nebraska replication. Journal of Speech and Hearing Disorders, 55, 779–798.
- Sosa, A. V., & Stoel-Gammon, C. (2006). Patterns of intra-word phonological variability during the second year of life. Journal of Child Language, 33, 31–50.
- Sosa, A. V., & Stoel-Gammon C. (2012). Lexical and phonological effects in early word production. Journal of Speech, Language, and Hearing Research, 55, 596–608.
- Stoel-Gammon, C. (2010). The word complexity measure: Description and application to developmental phonology and disorders. Clinical Linguistics & Phonetics, 24(4–5), 271–282.
- Stoel-Gammon, C. (2011). Relationships between lexical and phonological development in young children. Journal of Child Language, 38, 1–34.
- Thelen, E., & Bates, E. (2003). Connectionism and dynamic systems: Are they really different? Developmental Science, 6(4), 378–391.
- NOTICE OF CORRECTION
- This article has been changed since its original online publication date of 22 January 2013.