An investigation into differences in early childhood developmentVariability in Early Communicative Development demonstrates that the "modal child" does not, in fact, exist. Interviews with parents of over 1,800 children reveals both typical and exceptional communication development between the ages of eight and 30 months, providing unusually specific detail on the variability of individual lexical, gestural, and grammatical skills. Discussion of the Macarthur Communicative Development Inventories delves into the inventory's reliability, validity, and interrelations, before moving into an examination of the stability of differences and individual contributing factors.

This work shows that professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best - their parents or caregivers.

This work shows that professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best - their parents or caregivers.

This work shows that professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best - their parents or caregivers.

Professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best: their parents or caregivers. CDIs At A Glance - Age range covered: 8-30 months (may also be used with older children who have developmental delays); Areas screened: Language and communication skills; Approximate time for the CDI: Each form generally takes 20-40 minutes to complete and 10-15 minutes to score; Who completes it: Parents or caregivers; professionals score; and Validity and reliability: Numerous studies document the reliability and the validity of the instruments. The CDIs were normed on approximately 1,800 children in three locations, and the Inventaries were normed on more than 2,000 children. Now, with the CDIs professionals can tap into parents' invaluable day-to-day knowledge - and respond to legislation that requires parental input in child evaluations. Top language researchers developed these standardized, parent-completed report designing the forms to focus on current behaviors and salient emergent behaviors that parents can recognize and track. A ""words and gestures"" form. ""The CDI: Words and Gestures"" is for use with children ages 8-16 months, the first part prompts parents to document the child's understanding of hundreds of early vocabulary items separated into semantic categories such as animal names, household items, and action words. Parents mark the words understood or used, and the forms yield separate indexes of words understood and words produced. The second part of each form asks parents to record the communicative and symbolic gestures the child has tried or completed.A pack of 20 forms.

Professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best: their parents or caregivers. CDIs At A Glance - Age range covered: 8-30 months (may also be used with older children who have developmental delays); Areas screened: Language and communication skills; Approximate time for the CDI: Each form generally takes 20-40 minutes to complete and 10-15 minutes to score; Who completes it: Parents or caregivers; professionals score; and Validity and reliability: Numerous studies document the reliability and the validity of the instruments. The CDIs were normed on approximately 1,800 children in three locations, and the Inventories were normed on more than 2,000 children. Now, with the CDIs professionals can tap into parents' invaluable day-to-day knowledge - and respond to legislation that requires parental input in child evaluations. Top language researchers developed these standardized, parent-completed report designing the forms to focus on current behaviors and salient emergent behaviors that parents can recognize and track. ""CDI: Words and Sentences"" is for use with children ages 16-30 months, the first part prompts parents to document the child's understanding of hundreds of early vocabulary items separated into semantic categories. The second part analyzes the early phases of grammar, including the child's understanding of word forms and the complexity of the child's multi-word utterances. Parents identify the words the child has understood or used and provide written examples of the child's three longest sentences.A pack of 20 forms.

Professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best: their parents or caregivers. CDIs At A Glance - Age range covered: 8-30 months (may also be used with older children who have developmental delays); Areas screened: Language and communication skills; Approximate time for the CDI: Each form generally takes 20-40 minutes to complete and 10-15 minutes to score; Who completes it: Parents or caregivers; professionals score; and Validity and reliability: Numerous studies document the reliability and the validity of the instruments. The CDIs were normed on approximately 1,800 children in three locations, and the Inventories were normed on more than 2,000 children. Now, with the CDIs professionals can tap into parents' invaluable day-to-day knowledge - and respond to legislation that requires parental input in child evaluations. Top language researchers developed these standardized, parent-completed report designing the forms to focus on current behaviors and salient emergent behaviors that parents can recognize and track. ""CDI: Words and Sentences"" for use with children ages 16-30 months. In the first part of each form, parents document the child's production and use of hundreds of words divided into semantic categories. The second part analyzes the early phases of grammar, including the child's understanding of word forms and the complexity of the child's multi-word utterances. Parents identify the words the child has understood or used and provide written examples of the child's three longest sentences.A pack of 25 forms.

Used in both research and clinical settings, these parent report instruments help SLPs and other professionals screen children, develop a prognosis for children with language delays, plan effective intervention, monitor progress, and meet mandates for including parent input in child evaluation. The CDIs include measures for three age ranges:Words and Gestures form (ages 8 to 18 months). With this comprehensive instrument, parents document the child’s understanding of hundreds of early vocabulary items, and the form yields separate indexes of words understood and words produced. Then, parents record communicative and symbolic gestures the child has tried or completedWords and Sentences form (ages 16 to 30 months). Parents use this comprehensive instrument to document the child’s production of hundreds of words, record the child’s use of early forms of grammar, and provide written examples of the child’s three longest utterances.CDI-III (ages 30 to 37 months). This shorter, single-sheet tool measures expressive vocabulary and grammar.WHAT’S NEWThe third edition of the CDIs includes updated norms, additional tools, and more administration formats and helpful resources. Here’s a look at what’s new:Expanded and more representative norms—more than 4,000 new children have been added to the norming dataset for the CDI: Words and Gestures and CDI: Words and Sentences. Norming tables have been statistically adjusted to reflect key U.S. demographic indicators.More options for electronic administration of the CDIs, including fillable PDFs and a new web-based administration platform, Web-CDINew picture-based instructions with easy-to-understand illustrations and examplesMore extensive administration and scoring guidelines More on using the CDIs with bilingual and multilingual childrenAn expanded chapter on the CDI-IIIDetailed guidelines about choosing the most appropriate CDI forms when several are potentially usefulExpanded guidelines on the use of CDI short forms, including new statistically-adjusted norms and information on reliability and validityMore CDI resources available online, including Wordbank, an open repository of CDI data in 38 languages representing more than 84,000 childrenA rapid, valid Computerized Adaptive scale for expressive vocabulary, now available through Web-CDIA helpful list of frequently asked questions The CDI Third Edition Set includes:Paperback User’s Guide25 paper Words & Gestures forms25 paper Words and Sentences forms25 paper CDI-III forms

Used in both research and clinical settings, these parent report instruments help SLPs and other professionals screen children, develop a prognosis for children with language delays, plan effective intervention, monitor progress, and meet mandates for including parent input in child evaluation. Words and Gestures form (ages 8 to 18 months). With this comprehensive instrument, parents document the child’s understanding of hundreds of early vocabulary items, and the form yields separate indexes of words understood and words produced. Then, parents record communicative and symbolic gestures the child has tried or completed. It is available in a pack of 25. WHAT’S NEWThe third edition of the CDIs includes updated norms, additional tools, and more administration formats and helpful resources. Here’s a look at what’s new:Expanded and more representative norms—more than 4,000 new children have been added to the norming dataset for the CDI: Words and Gestures and CDI: Words and Sentences. Norming tables have been statistically adjusted to reflect key U.S. demographic indicators.More options for electronic administration of the CDIs, including fillable PDFs and a new web-based administration platform, Web-CDINew picture-based instructions with easy-to-understand illustrations and examplesMore extensive administration and scoring guidelines More on using the CDIs with bilingual and multilingual childrenAn expanded chapter on the CDI-IIIDetailed guidelines about choosing the most appropriate CDI forms when several are potentially usefulExpanded guidelines on the use of CDI short forms, including new statistically-adjusted norms and information on reliability and validityMore CDI resources available online, including Wordbank, an open repository of CDI data in 38 languages representing more than 84,000 childrenA rapid, valid Computerized Adaptive scale for expressive vocabulary, now available through Web-CDIA helpful list of frequently asked questions

Used in both research and clinical settings, these parent report instruments help SLPs and other professionals screen children, develop a prognosis for children with language delays, plan effective intervention, monitor progress, and meet mandates for including parent input in child evaluation. Words and Sentences form (ages 16 to 30 months). Parents use this comprehensive instrument to document the child’s production of hundreds of words, record the child’s use of early forms of grammar, and provide written examples of the child’s three longest utterances. It is available in a pack of 25. WHAT’S NEWThe third edition of the CDIs includes updated norms, additional tools, and more administration formats and helpful resources. Here’s a look at what’s new:Expanded and more representative norms—more than 4,000 new children have been added to the norming dataset for the CDI: Words and Gestures and CDI: Words and Sentences. Norming tables have been statistically adjusted to reflect key U.S. demographic indicators.More options for electronic administration of the CDIs, including fillable PDFs and a new web-based administration platform, Web-CDINew picture-based instructions with easy-to-understand illustrations and examplesMore extensive administration and scoring guidelines More on using the CDIs with bilingual and multilingual childrenAn expanded chapter on the CDI-IIIDetailed guidelines about choosing the most appropriate CDI forms when several are potentially usefulExpanded guidelines on the use of CDI short forms, including new statistically-adjusted norms and information on reliability and validityMore CDI resources available online, including Wordbank, an open repository of CDI data in 38 languages representing more than 84,000 childrenA rapid, valid Computerized Adaptive scale for expressive vocabulary, now available through Web-CDIA helpful list of frequently asked questions

An investigation into differences in early childhood developmentVariability in Early Communicative Development demonstrates that the "modal child" does not, in fact, exist. Interviews with parents of over 1,800 children reveals both typical and exceptional communication development between the ages of eight and 30 months, providing unusually specific detail on the variability of individual lexical, gestural, and grammatical skills. Discussion of the Macarthur Communicative Development Inventories delves into the inventory's reliability, validity, and interrelations, before moving into an examination of the stability of differences and individual contributing factors.

This work shows that professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best - their parents or caregivers.

This work shows that professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best - their parents or caregivers.

This work shows that professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best - their parents or caregivers.

Professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best: their parents or caregivers. CDIs At A Glance - Age range covered: 8-30 months (may also be used with older children who have developmental delays); Areas screened: Language and communication skills; Approximate time for the CDI: Each form generally takes 20-40 minutes to complete and 10-15 minutes to score; Who completes it: Parents or caregivers; professionals score; and Validity and reliability: Numerous studies document the reliability and the validity of the instruments. The CDIs were normed on approximately 1,800 children in three locations, and the Inventaries were normed on more than 2,000 children. Now, with the CDIs professionals can tap into parents' invaluable day-to-day knowledge - and respond to legislation that requires parental input in child evaluations. Top language researchers developed these standardized, parent-completed report designing the forms to focus on current behaviors and salient emergent behaviors that parents can recognize and track. A ""words and gestures"" form. ""The CDI: Words and Gestures"" is for use with children ages 8-16 months, the first part prompts parents to document the child's understanding of hundreds of early vocabulary items separated into semantic categories such as animal names, household items, and action words. Parents mark the words understood or used, and the forms yield separate indexes of words understood and words produced. The second part of each form asks parents to record the communicative and symbolic gestures the child has tried or completed.A pack of 20 forms.

Professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best: their parents or caregivers. CDIs At A Glance - Age range covered: 8-30 months (may also be used with older children who have developmental delays); Areas screened: Language and communication skills; Approximate time for the CDI: Each form generally takes 20-40 minutes to complete and 10-15 minutes to score; Who completes it: Parents or caregivers; professionals score; and Validity and reliability: Numerous studies document the reliability and the validity of the instruments. The CDIs were normed on approximately 1,800 children in three locations, and the Inventories were normed on more than 2,000 children. Now, with the CDIs professionals can tap into parents' invaluable day-to-day knowledge - and respond to legislation that requires parental input in child evaluations. Top language researchers developed these standardized, parent-completed report designing the forms to focus on current behaviors and salient emergent behaviors that parents can recognize and track. ""CDI: Words and Sentences"" is for use with children ages 16-30 months, the first part prompts parents to document the child's understanding of hundreds of early vocabulary items separated into semantic categories. The second part analyzes the early phases of grammar, including the child's understanding of word forms and the complexity of the child's multi-word utterances. Parents identify the words the child has understood or used and provide written examples of the child's three longest sentences.A pack of 20 forms.

Professionals can learn a great deal about young children's emerging language and communication skills by consulting the ones who know the children best: their parents or caregivers. CDIs At A Glance - Age range covered: 8-30 months (may also be used with older children who have developmental delays); Areas screened: Language and communication skills; Approximate time for the CDI: Each form generally takes 20-40 minutes to complete and 10-15 minutes to score; Who completes it: Parents or caregivers; professionals score; and Validity and reliability: Numerous studies document the reliability and the validity of the instruments. The CDIs were normed on approximately 1,800 children in three locations, and the Inventories were normed on more than 2,000 children. Now, with the CDIs professionals can tap into parents' invaluable day-to-day knowledge - and respond to legislation that requires parental input in child evaluations. Top language researchers developed these standardized, parent-completed report designing the forms to focus on current behaviors and salient emergent behaviors that parents can recognize and track. ""CDI: Words and Sentences"" for use with children ages 16-30 months. In the first part of each form, parents document the child's production and use of hundreds of words divided into semantic categories. The second part analyzes the early phases of grammar, including the child's understanding of word forms and the complexity of the child's multi-word utterances. Parents identify the words the child has understood or used and provide written examples of the child's three longest sentences.A pack of 25 forms.

Used in both research and clinical settings, these parent report instruments help SLPs and other professionals screen children, develop a prognosis for children with language delays, plan effective intervention, monitor progress, and meet mandates for including parent input in child evaluation. The CDIs include measures for three age ranges:Words and Gestures form (ages 8 to 18 months). With this comprehensive instrument, parents document the child’s understanding of hundreds of early vocabulary items, and the form yields separate indexes of words understood and words produced. Then, parents record communicative and symbolic gestures the child has tried or completedWords and Sentences form (ages 16 to 30 months). Parents use this comprehensive instrument to document the child’s production of hundreds of words, record the child’s use of early forms of grammar, and provide written examples of the child’s three longest utterances.CDI-III (ages 30 to 37 months). This shorter, single-sheet tool measures expressive vocabulary and grammar.WHAT’S NEWThe third edition of the CDIs includes updated norms, additional tools, and more administration formats and helpful resources. Here’s a look at what’s new:Expanded and more representative norms—more than 4,000 new children have been added to the norming dataset for the CDI: Words and Gestures and CDI: Words and Sentences. Norming tables have been statistically adjusted to reflect key U.S. demographic indicators.More options for electronic administration of the CDIs, including fillable PDFs and a new web-based administration platform, Web-CDINew picture-based instructions with easy-to-understand illustrations and examplesMore extensive administration and scoring guidelines More on using the CDIs with bilingual and multilingual childrenAn expanded chapter on the CDI-IIIDetailed guidelines about choosing the most appropriate CDI forms when several are potentially usefulExpanded guidelines on the use of CDI short forms, including new statistically-adjusted norms and information on reliability and validityMore CDI resources available online, including Wordbank, an open repository of CDI data in 38 languages representing more than 84,000 childrenA rapid, valid Computerized Adaptive scale for expressive vocabulary, now available through Web-CDIA helpful list of frequently asked questions The CDI Third Edition Set includes:Paperback User’s Guide25 paper Words & Gestures forms25 paper Words and Sentences forms25 paper CDI-III forms

Used in both research and clinical settings, these parent report instruments help SLPs and other professionals screen children, develop a prognosis for children with language delays, plan effective intervention, monitor progress, and meet mandates for including parent input in child evaluation. Words and Gestures form (ages 8 to 18 months). With this comprehensive instrument, parents document the child’s understanding of hundreds of early vocabulary items, and the form yields separate indexes of words understood and words produced. Then, parents record communicative and symbolic gestures the child has tried or completed. It is available in a pack of 25. WHAT’S NEWThe third edition of the CDIs includes updated norms, additional tools, and more administration formats and helpful resources. Here’s a look at what’s new:Expanded and more representative norms—more than 4,000 new children have been added to the norming dataset for the CDI: Words and Gestures and CDI: Words and Sentences. Norming tables have been statistically adjusted to reflect key U.S. demographic indicators.More options for electronic administration of the CDIs, including fillable PDFs and a new web-based administration platform, Web-CDINew picture-based instructions with easy-to-understand illustrations and examplesMore extensive administration and scoring guidelines More on using the CDIs with bilingual and multilingual childrenAn expanded chapter on the CDI-IIIDetailed guidelines about choosing the most appropriate CDI forms when several are potentially usefulExpanded guidelines on the use of CDI short forms, including new statistically-adjusted norms and information on reliability and validityMore CDI resources available online, including Wordbank, an open repository of CDI data in 38 languages representing more than 84,000 childrenA rapid, valid Computerized Adaptive scale for expressive vocabulary, now available through Web-CDIA helpful list of frequently asked questions

Used in both research and clinical settings, these parent report instruments help SLPs and other professionals screen children, develop a prognosis for children with language delays, plan effective intervention, monitor progress, and meet mandates for including parent input in child evaluation. Words and Sentences form (ages 16 to 30 months). Parents use this comprehensive instrument to document the child’s production of hundreds of words, record the child’s use of early forms of grammar, and provide written examples of the child’s three longest utterances. It is available in a pack of 25. WHAT’S NEWThe third edition of the CDIs includes updated norms, additional tools, and more administration formats and helpful resources. Here’s a look at what’s new:Expanded and more representative norms—more than 4,000 new children have been added to the norming dataset for the CDI: Words and Gestures and CDI: Words and Sentences. Norming tables have been statistically adjusted to reflect key U.S. demographic indicators.More options for electronic administration of the CDIs, including fillable PDFs and a new web-based administration platform, Web-CDINew picture-based instructions with easy-to-understand illustrations and examplesMore extensive administration and scoring guidelines More on using the CDIs with bilingual and multilingual childrenAn expanded chapter on the CDI-IIIDetailed guidelines about choosing the most appropriate CDI forms when several are potentially usefulExpanded guidelines on the use of CDI short forms, including new statistically-adjusted norms and information on reliability and validityMore CDI resources available online, including Wordbank, an open repository of CDI data in 38 languages representing more than 84,000 childrenA rapid, valid Computerized Adaptive scale for expressive vocabulary, now available through Web-CDIA helpful list of frequently asked questions