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DDS-easyCBM Math

The DDS-easyCBM Math assessment is an online benchmark screening tool developed at the University of Oregon.

The test items are multiple choice and testing occurs on a secure web site. They are based on the Focal Points from the National Council of Teachers of Mathematics (NCTM) and have strong foundational overlap with the Common Core State Standards (CCSS).

DIBELS Data System researchers worked with University of Oregon colleagues and developers of the assessment on a research study during the 2009-2010 school year. The research sample included 10,525 students in approximately 60 schools. The results of that study produced a set of nationally representative percentiles for the easyCBM Math assessment. Students scoring below the 40th percentile can be considered at some risk for poor mathematics outcomes. Students scoring below the 20th percentile can be considered at risk. See our library of technical reports regarding the reliability and validity of the easyCBM Math assessment.

Benchmark Screening

Benchmark testing is the systematic process of screening all students on essential skills predictive of later mathematics performance. Benchmark testing is one part of a comprehensive assessment system that includes universal screening, progress monitoring, summative assessments and other formal and informal assessments all designed to get the critical information needed to make informed instructional decisions. It is a foundational link between assessment, instruction and goal setting.

The DDS-easyCBM assessments have been researched and validated specifically for benchmark testing in Kindergarten through 6th grade. We recommend screening all students three times per year with grade-level materials. Research indicates that early identification and early intervention are essential for helping students who are at risk for future difficulties, or are currently having difficulties. Screening all students, including those who met earlier goals, also provides a complete data set that is needed to determine if math instruction is effective with all students at the school or district level. Benchmark data can help answer the following types of questions:

  • Is our program effective with all students at all grade levels?
  • Are there exemplar schools (or classes) in our district on which we can model successful math instruction?
  • What are the strengths of our mathematics program?
  • What areas of our math program need improvement?
  • Did we meet our mathematics goals this year?

DDS-easyCBM Math in the Data System

The easyCBM Math assessment is available through the DIBELS Data System (DDS) and is included in the $1 per student per year fee. The Data System includes benchmark testing 3x per year for kindergarten through sixth grade. Progress monitoring is not available through DDS. The benchmark assessment is administered online so there are no materials to purchase. In order to ensure security of test items, paper copies of the assessment are not available. The example tests can give you an idea of the type of questions and level of difficulty your students will face. As of Fall 2012, DIBELS Data System reports group items according to the CCSS Domains, rather than NCTM Focal Points. CTL is in the process of mapping the problems at the standards-level. Please consult our easyCBM Math Update document for more information.

Students in your DIBELS Data System account will need to be specifically assigned to math classes in order to take the easyCBM Math assessment. Steps for setting up your account can be found in the easyCBM Math Quick Start Guide. Read more about testing instructions to learn about specific administration guidelines and accommodations.