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English IGDI Assessments

The English Individual Growth and Development Indicators (IGDIs) are a suite of early language and literacy assessments designed to measure the precursors to emerging reading, aligned with the science of structured reading. The measures include indicators of:

IGDIs are in a class of measures called General Outcome Measures (GOMS), that require they are:

  • Each measure is brief (3-5 minute)
  • Easy to use
  • Instructionally relevant
  • Related to long-term outcomes
  • Sensitive to change over brief periods of time

English Measures sorted by age group and indicators:

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