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How do you calculate a developmental delay percentage?

In: Child Development [Edit categories]

Answer:

Developmental delay is calculated with the IQ (Intellectual Quotient) level of the child.

IQ = Mental Age/Chronological Age * 100

Mental Age is calculated against a set of checkpoints of the Child Development Milestone chart

For Example IQ = 0.3/0.8 * 100 (in terms of months) = 35% approx.; that means the infant is 8 months old but the mental age is only as of a 3 months old baby, so there is a delay of 5 months of cognitive development

Average expected IQ level is 70% and above

First answer by Privijay. Last edit by Privijay. Contributor trust: 0 [recommend contributor ]. Question popularity: 1 [recommend question].

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