| 1. Child reacts to motherese, through vocalizations, body movements, or gaze. |
Baby |
| 2. The infant fills his place in the interlocution with verbal sounds such as vowels and/or consonants. (for example, /a, u, i/ or /m n p t/). |
Baby |
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3. The child fills his/her place in the interlocution with non-verbal sounds in a manner attuned to the enunciative context (smiling, screaming, crying, coughing, grunting).
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Baby |
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4. The child fills his place in the interlocution silently only with body movements and looks attuned to the enunciative context.
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Baby |
| 5. The child initiates the conversation or protoconversation |
Baby |
| 6. Child and mother (or surrogate) exchange glances during interaction (for 3 or more seconds) |
Baby and Mother |
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7. Mother (or surrogate) assigns meaning to infant's verbal and nonverbal manifestations, sustaining the protoconversation.
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Mother |
| 8. Mother (or surrogate) uses motherese by talking to the infant in a manner attuned to what is happening in the context and waiting for the infant's responses. |
Mother |
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Phase II - Signs from 7 to 12 months and 29 days
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| 9. The infant fills her place in the interlocution (enunciation) with verbal sounds (syllables with varied vowels and consonants-at least two points and two consonant articulation modes-for example, syllables like pa, ta, ma, na etc.) and in a manner addressed to the interlocutor |
Baby |
| 10. The child outlines the production of protowords by mirroring the mother's (or surrogate's) speech, addressing her production to the interlocutor. |
Baby |
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11. The child drafts the production of protowords spontaneously, addressing them to the interlocutor.
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Baby |
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12. The mother responds to the child, pauses and gives space for new manifestation by the child.
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Mother |
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Phase III - Signs 13 to 17 months
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| 13. The child names spontaneously and intelligibly to the adult interlocutor, objects that are absent in the context. |
Baby |
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14. The child produces an utterance not understood by the adult, but makes an effort to make himself understood by altering prosody, intonation, rhythm or repetition to try to be understood.
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Baby |
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15. The child names spontaneously and intelligibly to the adult interlocutor, objects, people, actions, which are present in the enunciative context.
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Baby |
| 16. The child makes gestures to try to make herself understood when the adult interlocutor does not understand her |
Baby |
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17. The child repeats the interlocutor adult's utterance as a way of organizing or reorganizing his utterance, for example, by improving the syntactic form, or phonological, or lexical item choice, or even by accentuating some item prosodically.
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Baby |
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18. The child talks to different adult interlocutors (father, mother, examiner).
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Baby |
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19. The adult interlocutor assigns possible meaning to the child's verbal productions, i.e., in a attuned manner.
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Mother |
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Phase IV- Signs 18 to 24 months
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20. The child requests objects and/or asks for clarification from the interlocutor adult, marking his position as a speaker.
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Baby |
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21. The child uses distinct phonemic forms to convey different meanings in his utterance (at least two articulatory points-labial (b, p, m) and alveolar (t, d, n) -and two distinct consonantal sound classes-at least nasal (m, n) and plosive (p, t).
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Baby |
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22. The child uses distinct forms (words) to convey different meanings in his utterance.
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Baby |
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23. Child combines words, in direct or inverse form, to convey different meanings (short sentences or compound expressions)
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Baby |
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24. When the child presents verbal productions different from adult speech, the adult interlocutor reacts by making a neutral repair request (what) or by correctly repeating the child's speech, without breaking the dialogue.
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Mother |
