Bilingual CDI Scoring

o CDI Words & Gestures: These scores are calculated by Filemaker automatically (OLD- NOW WE USE WEB CDI) and can be found on the summary layout of the questionnaire. They can also be calculated by hand by counting the number of words parents checked off.

§ Comprehensive Vocab - English Vocab Size: Number of English words child understands

§ Comprehensive Vocab – French Vocab Size: Number of French words child understands

§ Comprehensive Vocab - Total Vocab Size: Sum of English and French words child understands – Only relevant for infants who have both an English and French CDI completed. For babies with only 1 CDI completed this number will match the vocab size for English or French Vocab Size.

§ Comprehensive Vocab - Total number of TEs (translation equivalents): Number of labels that child understands in both English and French (e.g., if child understands both dog and chien that counts as 1 TE as opposed to if they only understood dog or only understood chien) – Only relevant/available for infants who have both an English and French CDI completed

§ Comprehensive Vocab – Conceptual Vocabulary Size: Number of concepts the child understands, calculated by subtracting the number of TEs child understands from the total comprehensive vocabulary (i.e., Total Vocab Size – Total Number of TEs). For instance if the child understands both dog and chien then they understand two words (i.e., number reflected in total vocab size) but only one concept (i.e., number reflected in TE count) – Only relevant for infants who have both an English and French CDI. For babies with only 1 CDI completed this number will match the vocab size for English/French Vocab Size and Total Vocab Size.

§ Productive Vocab - English Vocab Size: Number of English words child says

§ Productive Vocab – French Vocab Size: Number of French words child says

§ Productive Vocab - Total Vocab Size: Sum of English and French words child says – Only relevant for infants who have both an English and French CDI completed. For babies with only 1 CDI completed this number will match the vocab size for English or French Vocab Size.

§ Productive Vocab - Total number of TEs (translation equivalents): Number of labels that child says in both English and French (e.g., if child says both dog and chien that counts as 1 TE as opposed to if they only say dog or only say chien) – Only relevant/available for infants who have both an English and French CDI completed

§ Comprehensive Vocab – Conceptual Vocabulary Size: Number of concepts the child says, calculated by subtracting the number of TEs child says from the total productive vocabulary (i.e., Total Vocab Size – Total Number of TEs). For instance if the child says both dog and chien then they say two words (i.e., number reflected in total vocab size) but only one concept (i.e., number reflected in TE count) – Only relevant for infants who have both an English and French CDI. For babies with only 1 CDI completed this number will match the vocab size for English/French Vocab Size and Total Vocab Size.

o CDI Words & Sentences: These scores are calculated by Filemaker (OLD- NOW WE USE WEB CDI) automatically and can be found on the summary layout of the questionnaire. They can also be calculated by hand by counting the number of words parents checked off.

§ Total # of English Words: Number of English words child says

§ Total # of French Words: Number of French words child says

§ Total Vocab Size: Sum of English and French words child says – Only relevant for infants who have both an English and French CDI completed. For babies with only 1 CDI completed this number will match the vocab size for English or French Vocab Size.

§ Total # of TEs (translation equivalents): Number of labels that child says in both English and French (e.g., if child says both dog and chien that counts as 1 TE as opposed to if they only say dog or only say chien) – Only relevant/available for infants who have both an English and French CDI completed

§ For instance if the child says both dog and chien then they say two words (i.e., number reflected in total vocab size) but only one concept (i.e., number reflected in TE count) – Only relevant for infants who have both an English and French CDI. For babies with only 1 CDI completed this number will match the vocab size for English/French Vocab Size and Total Vocab Size.