Infant-Toddler IGDI

Functionality & Mechanism

The Infant-Toddler Individual Growth and Development Indicators (IGDI) system facilitates longitudinal progress monitoring for children from birth to three years. The platform leverages a series of brief, play-based assessments, each requiring approximately six minutes to administer. These assessments are designed for frequent use to track incremental developmental changes. Core domains measured encompass communication, motor skills, social engagement, and cognitive problem-solving. A web-based application supports data entry, scoring, and visualization, with established protocols for remote administration via videoconferencing.

Evidence & Research Context

• An evaluation study of 50 Early Intervention practitioners demonstrated that professionals can be certified to reliably administer and score I/T IGDIs after a few training sessions.
• Associated research details the successful development of remote administration protocols, reporting score equivalence between in-person and remotely conducted assessments facilitated via videoconferencing.
• Implementation research in community-based agencies found that systemic factors, such as high staff turnover and high staff-to-child ratios, were associated with lower rates of adoption.
• In field-based studies, the communication indicator has been the most frequently utilized IGDI domain, indicating its perceived utility among practitioners for tracking language development.

Intended Use & Scope

This system is designed for early intervention practitioners, educators, and researchers for frequent progress monitoring and developmental screening. Its primary utility is to generate data that informs intervention and instructional decision-making. The IGDI is not a diagnostic tool; results indicating risk of delay necessitate a comprehensive developmental evaluation by a qualified professional.