Morphemes matter: A small scale randomised control trial of vocabulary intervention focusing on affixes for adolescents with (developmental) language disorder.
Purpose: To investigate whether morphological intervention improves understanding of affixes in adolescents with a language disorder and whether progress generalises. Method: A total of 25 adolescents aged 13–15 years participated in this single-blind trial with random allocation. All participants h...
| Published in: | International Journal of Speech-Language Pathology Vol. 28; no. 4; pp. 851 - 870 |
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| Main Authors: | , , , , , , |
| Format: | research tables/charts randomized controlled trial Journal Article |
| Published: |
Taylor & Francis Ltd
Aug2026
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=196565335&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 196565335 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17549507 8NBH jtl: International Journal of Speech-Language Pathology issn: 17549507 maglogo: Y pubinfo: dt: Aug2026 vid: 28 iid: 4 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 196565335 187083435 196565335 196565335 10.1080/17549507.2025.2526539 196565335 ppf: 851 ppct: 19 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Morphemes matter: A small scale randomised control trial of vocabulary intervention focusing on affixes for adolescents with (developmental) language disorder. aug: au: Glisson, Laura Tutty, Rachel Heine, Caroline Burke, Caroline Hughes, Lucy Dawson, Nicola Ebbels, Susan affil: Moor House School & College, Oxted, UK sug: subj: Language Disorders Therapy Vocabulary Language Therapy Human United Kingdom Male Female Adolescence Randomized Controlled Trials Random Assignment Comparative Studies Descriptive Statistics Auditory Perceptual Disorders Linguistics Language Development Adolescent: 13-18 years Male Female ab: Purpose: To investigate whether morphological intervention improves understanding of affixes in adolescents with a language disorder and whether progress generalises. Method: A total of 25 adolescents aged 13–15 years participated in this single-blind trial with random allocation. All participants had a language disorder; 18 with developmental language disorder, four with associated genetic conditions, and three with autism. A total of 11 participants received twice-weekly morphological intervention for 30 min with a speech-language pathologist for 8 weeks, while 14 received intervention as usual. Two tests were administered pre- and post-intervention: Affix definition and an adapted rehit task, which tested participants' ability to work out the meaning of novel words containing affixes. To investigate generalisation to untaught affixes, only half of the affixes were taught in intervention. Result: Those in the intervention group made significantly more progress than controls on both tasks, but only on taught affixes. Therefore, learning generalised to understanding the meaning of taught affixes in combinations with new roots (adapted rehit task) but did not generalise to untaught affixes on either task. Conclusion: The intervention was effective and learning generalised to other words containing taught affixes. Intervention for affixes has potential to greatly increase understanding of vocabulary following relatively small amounts of intervention. pubtype: Academic Journal doctype: research tables/charts randomized controlled trial Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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