Early Language Milestone Scale

A scale by James Coplan M.D., first published in 1983, for describing the extent of a child's use of language at ages younger than three. It is used by clinicians in diagnosing delayed language development. Two ways of applying the scale are possible:

If you have come to this page seeking guidance about your own child, you may wish to consult asha.org/public/speech/development/chart.htm

further reading

James Coplan.
The Early Language Milestone Scale.
Tulsa, Oklahoma: Modern Education Corporation, 1983.

James Coplan.
The Early Language Milestone Scale, second edition (ELM-2).
Austin, Texas: PRO-ED (8700 Shoal Creek Blvd., 78758), 1993.

James Coplan, John Gleason, Rita Ryan, Michael G. Burke and Margaret L. Williams.
Validation of an Early Language Milestone Scale in a High Risk Population.
Pediatrics, vol. 70, pages 677-683 (1982).

James Coplan and John R. Gleason.
Quantifying language development from birth to three using the Early Language Milestone Scale.
Pediatrics, vol. 86, pages 963-971 (1990).

M A Jerome, A S Honig, and James Coplan.
Validation of the Early Language Milestone Scale in a low-risk population.
Preventive Pediatrics, vol. 1, number 3, pages 99-103 (1991).

James Coplan and John R. Gleason.
Test-retest and interobserver reliability of the Early Language Milestone Scale, second edition (ELM Scale-2).
Journal of Pediatric Health Care, vol. 7, pages 212-219 (1993).

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