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ITBS® Test (Iowa Test of Basic Skills)

The ITBS® (Iowa Test of Basic Skills) was originally call the Iowa Every Pupil Test of Basic Skills and has been used since 1935 as a tool to monitor and track student practice over time. There were several people involved in the development of the tests:

  • Everett Franklin Lindquist
  • Harry Greene,
  • Ernest Horn,
  • Maude McBroom,
  • Herbert Spitzer

The ITBS is given as a standardized test to children ranging from kindergarten to 8th grade. The ITBS test is an achievement test. This means that it assesses a child’s knowledge of what they have learned in school. The ITBS is not a cognitive or an IQ test.

The ITBS test is written in levels 5-14. You will see below that there is some overlap between the different levels of the test.

  • Level 5 covers K.1 – Grade 1.5,
  • Level 6 covers K.7 – Grade 1.9,
  • Level 7 covers Grade 1.7 – 2.4,
  • Level 8 covers Grade 2.5 – 3.5,
  • Level 9 covers grade 3,
  • Level 10 covers grade 4,
  • Level 11 covers grade 5,
  • Level 12 covers grade 6,
  • Level 13 covers grade 7,
  • Level 14 covers grade 8.

Each test level within the Iowa Skills Test® consists of a series of subtests administered in content sections. Sections in the ITBS test for kindergarten, first grade, second grade and third grade tests include:

  • Vocabulary test
  • Word Analysis test
  • Reading Comprehension test
  • Listening test
  • Language test
  • Mathematics test

Sections for third – sixth grade include:

  • Vocabulary test
  • Reading/ Reading Comprehension
  • Spelling, Capitalization, Punctuation, Usage and Expression
  • Mathematics Concepts and Estimation, Problem Solving, Data Interpretation, Computation
  • Social Studies
  • Science
  • Sources of Information (Maps, Diagrams, Reference Materials)
Iowa Tests of Basic Skills® (ITBS®) is a registered trademark of Riverside Publishing, a Houghton Mifflin Company, or their affiliate(s), or their licensors. TestingMom.com is not affiliated with nor related to Houghton Mifflin Company or its affiliates (“Houghton Mifflin”). Houghton Mifflin does not sponsor or endorse any TestingMom.com product, nor have TestingMom.com products or services been reviewed, certified, or approved by Houghton Mifflin. Trademarks referring to specific test providers are used by TestingMom.com for nominative purposes only and such trademarks are solely the property of their respective owners.

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