A Vocabulary Acquisition and Usage for Late Talkers Treatment Efficacy Study: The Effect of Input Utterance Length and Identification of Responder Profiles

Autor/inn/en	Alt, Mary; Figueroa, Cecilia R.; Mettler, Heidi M.; Evans-Reitz, Nora; Erikson, Jessie A.
Titel	A Vocabulary Acquisition and Usage for Late Talkers Treatment Efficacy Study: The Effect of Input Utterance Length and Identification of Responder Profiles
Quelle	In: Journal of Speech, Language, and Hearing Research, 64 (2021) 4, S.1235-1255 (21 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Alt, Mary) ORCID (Figueroa, Cecilia R.) ORCID (Mettler, Heidi M.) ORCID (Evans-Reitz, Nora) ORCID (Erikson, Jessie A.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
Schlagwörter	Vocabulary Development; Delayed Speech; Outcomes of Treatment; Speech Therapy; Child Language; Toddlers; Expressive Language; Short Term Memory; Phonological Awareness; Individual Characteristics; Language Skills; Measures (Individuals); Child Development; Arizona (Tucson); MacArthur Communicative Development Inventory; Bayley Scales of Infant Development + Suchen Sie Ihr Suchwort? Wortschatzarbeit; Sprachverzögerung; Entwicklungsproximale Sprachtherapie; Logotherapie; 'Children''s language'; Kindersprache; Infant; Infants; Toddler; Kleinkind; Kurzzeitgedächtnis; Personality characteristic; Personality traits; Persönlichkeitsmerkmal; Language skill; Sprachkompetenz; Messdaten; Kindesentwicklung
Abstract	Purpose: This study examined the efficacy of the Vocabulary Acquisition and Usage for Late Talkers (VAULT) treatment in a version that manipulated the length of clinician utterance in which a target word was presented (dose length). The study also explored ways to characterize treatment responders versus nonresponders. Method: Nineteen primarily English-speaking late-talking toddlers (aged 24-34 months at treatment onset) received VAULT and were quasirandomly assigned to have target words presented in grammatical utterances matching one of two lengths: brief (four words or fewer) or extended (five words or more). Children were measured on their pre- and posttreatment production of (a) target and control words specific to treatment and (b) words not specific to treatment. Classification and Regression Tree (CART) analysis was used to classify responders versus nonresponders. Results: VAULT was successful as a whole (i.e., treatment effect sizes of greater than 0), with no difference between the brief and extended conditions. Despite the overall significant treatment effect, the treatment was not successful for all participants. CART results (using participants from the current study and a previous iteration of VAULT) provided a dual-node decision tree for classifying treatment responders versus nonresponders. Conclusions: The input-based VAULT treatment protocol is efficacious and offers some flexibility in terms of utterance length. When VAULT works, it works well. The CART decision tree uses pretreatment vocabulary levels and performance in the first two treatment sessions to provide clinicians with promising guidelines for who is likely to be a nonresponder and thus might need a modified treatment plan. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01