WJ Score Interpretation Chart
Level96/90 to 100/90Independent76/90 to 95/90Instructional75/90 and belowFrustrationCriterion-Referenced Interpretation of RPI ScoresW Difference InterpretationInterpretation of RPI ScoresW Difference ValuesReported RPIsProficiencyImplications+31 & above100/90Very AdvancedExtremely Easy+14 to +3098/90 to 100/90AdvancedVery Easy+7 to +1395/90 to 98/90Average to AdvancedEasy-6 to +682/90 to 95/90AverageManageable-13 to -767/90 to 82/90Limited to AverageDifficult-30 to -1424/90 to 67/90LimitedVery Difficult-50 to -313/90 to 24/90Very LimitedExtremely Difficult-51 or below0/90 to 3/90Extremely LimitedNearly ImpossibleWoodcock-Johnson IV: Score Interpretation ChartCALP LevelW DifferenceRPIInstructional Implications6Very Advanced+31 & above100/90Extremely Easy5Advanced+14 to +3098/90 to 100/90Very Easy4 5 ( )Fluent to Advanced+7 to +1395/90 to 98/90Easy4Fluent
CALP Levels are based on how far above or below the examinee’s score falls from average score for age or grade mates. The W Difference score represents this distance. Time-Tested, Reliable Assessments Riverside Insights is please to off er individually administered assessment solutions in the following areas:
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