To facilitate digital use of the MacArthur-Bates Communicative Development Inventories (CDIs), use Web-CDI, an online administration and management website. The English Computer Adaptive Testing (CAT) form is a brief, dynamic assessment of vocabulary production that reduces the number of items that parents and caregivers must complete.
The MacArthur-Bates Communicative Development Inventories (CDIs) are some of the most widely used and recommended measures of language and communication for young children.
Web-CDI is an online administration website for the CDIs. With Web-CDI, the professional can set up children, send links to parents and caregivers to complete the assigned measure, and track progress. The parent/caregiver completes the measure on a laptop or tablet with internet connection. Upon completion, the professional can download the data and results.
The English Computer Adaptive Testing (CAT) form is a brief, dynamic assessment that reduces the number of items for which parents/caregivers must report. The CAT questions are chosen adaptively based on the individual’s response to the previous question and is designed for use with ages 12-36 months.
Developed by a team of leading researchers at Stanford University, Web-CDI makes it quicker to share CDIs with parents and caregivers and lets them completes the forms digitally.
Accessing Web-CDI
Once your purchase has been processed, you will receive an email with an access code. Please be sure to check your Junk/Spam folder. Follow the directions attached to the email to register for a Web-CDI account at https://webcdi.stanford.edu/ and input your code.
The access code will activate your account for one year.
Customers should purchase one access code for each professional, alongside the MacArthur-Bates Communicative Development Inventories User's Guide and Technical Manual, Third Edition for useful information about the development and use of CDI.
Learn more about the MacArthur-Bates CDIs, Third Edition here.