Page 14 - Routines-Based Early Intervention Guidebook Sample 210216
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Routines-Based Early Intervention Guidebook
Apples To Apples
The following milestones are expected for all children, regardless of home language.
Building Blocks for Speech Building Blocks for Language
0‐1 month – crying and vegeta ve sounds 0‐1 month – crying and vegeta ve sounds
1‐6 months – cooing, laughter, squealing, growling 2‐3 months – eye gaze
4‐6 months – marginal babbling 6‐9 months – joint a en on
6‐8 months – reduplicated babbling 9‐12 months – using gestures
8‐10 months – variegated babbling 12‐15 months – following simple commands
8‐12 months – echolalia 18 months – symbolic play, pretend play
9‐12 months – phone cally consistent forms 24 months – sequencing of ac vi es
9‐12 months – jargon 36 months – episodic play
Speech Intelligibility Language Trajectories
For parents: (Lynch, Brookshire & Fox, 1980) Bilingual children develop early vocabulary at the same
rate as monolingual children (Pearson, Fernández, &
18 months ‐ ~25% intelligible
Oller, 1993; Umbel et al., 1992).
2 year olds ‐ 50‐75% intelligible
Early language milestones are similar (single words, lexical
3 year olds ‐ 75%‐100% intelligible spurt, 2‐word phrases) (Pearson and Fernández, 1994).
For unfamiliar listener: (Flipsen, 2006) Conceptual scores are similar (Pearson, 1998; Kester, &
18 months ‐ ~25% intelligible Peña, 2002; Bedore, et al. 2005).
2 year olds ‐ ~50% intelligible
Vocabulary Development
3 year olds ‐ ~75% intelligible
12 months – first words (usually labeling familiar objects,
4 year olds ‐ 100% intelligible
and ac ons in child’s environment)
Common Consonant Inventories
15 months – 4‐6 word vocabulary
in English & Spanish 18 months – 20‐50 word vocabulary
24 months – 200‐300 word vocabulary
Age # Inventory (E&S, E, S) 36 months ‐ roughly 1000 words
12 M 5 b d g m h Overextensions (e.g., calling all men ‘Dada’)
18 M 9 b d m n w s h t y
Underextensions (e.g., calling a ger ‘ki y’)
24 M 10 b d p t k m n s w h y
30 M 13 b d p t k m n s w g f h y
36 M 13 b d p t k m n s w g f y h
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