Laureate's Linguistic Hierarchy describes seven stages of language development and provides language characteristics and training goals for each stage.

Laureate software covers seven stages of language development from birth to adulthood. Please use the following tool to determine which products best meet the needs of your student or client.

If your student or client does not understand any words, choose products from Stage 1 and Stage 2.

If s/he understands only a few words, choose programs from Stage 3.

If s/he uses 150-200 words, but is not combining them, choose products from the end of Stage 3 and also from Stage 4.

If s/he is combining words but not talking in sentences, choose products from Stage 5.

If s/he speaks in sentences but makes grammatical errors, choose programs from Stage 6.

Is s/he is having problems learning to read and write and/or having difficulty with irregular verbs, choose programs from Stage 7.