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University of Oregon (2021). 8th Edition of Dynamic Indicators of Basic Early Literacy Skills (DIBELS ®). Eugene, OR: University of Oregon. Available: https://dibels.uoregon.edu/

Please contact our partner, Amplify Education for questions about DIBELS Data System Account access as they now manage that system. You can contact them directly at amplify.

DIBELS is actually used best as a suite of assessments using the composite score to assess risk. Composite scores are the most valid predictor of reading risk.

Composite scores should only be calculated with all the grade level appropriate tests administered unless the discontinue/gating rules were followed.
You can find more about this in the Administration and Scoring Guide which can be downloaded from the Testing Materials page https://dibels.uoregon.edu/materials, by clicking on "DOWNLOAD DIBELS MATERIALS" and clicking through the Educational Use Agreement.
Page 130 is where the constants are listed for discontinued and gated administrations.

There is a Composite Score Calculation Guide Supplement on the Resources page https://dibels.uoregon.edu/resources