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Making Sense of Scale Scores and Raw Scores

Making Sense of Scale Scores and Raw Scores. The Cherry Tomato Analogy. John Fessenden john@lead4ward.com. Posted at: lead4ward.com/resources. Confusing terms . . . . Passing Standard Pass Rate Pass Rate Standard. Level of performance necessary to “pass” the test

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Making Sense of Scale Scores and Raw Scores

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  1. Making SenseofScale Scores and Raw Scores The Cherry Tomato Analogy John Fessenden john@lead4ward.com

  2. Posted at: lead4ward.com/resources

  3. Confusing terms . . . • Passing Standard • Pass Rate • Pass Rate Standard • Level of performance necessary to “pass” the test • Expressed as scale score • Raw score may vary year-to-year • % of students meeting the Passing/Performance Standard • % meeting Level II • % meeting Level III • Accountability targets • Pass rate necessary to achieve a particular rating

  4. STAAR Performance StandardsScale Scores vs. Raw Scores Raw scores . . . • make sense to teachers • are likely to differ from year-to-year based on questions on that year’s test Scales scores . . . • make sense to psychometricians • ensure consistent level of performance across years 2012 Level II = 1458 points 2013 Level II = 1458 points 2013 Level II = 26 questions (57%) 2012 Level II = 25 questions (54%) Grade 5 Reading

  5. STAAR Performance StandardsThe Cherry Tomato Analogy • How many cherry tomatoes = 2 lbs? • First trip to store: might be 25 • Next trip: might be 26 25 26 2 lbs.

  6. STAAR Performance Standards • State assessment also uses a scale (but uses points, not pounds) • How many questions correct = 1458 Scale Score Points? • Spring 2012 Grade 5 Reading: 1458 points = 25 correct (54%) • Spring 2013 Grade 5 Reading: 1458 points = 26 correct (57%) Grade 5 Reading - Spring 2012 Grade 5 Reading – Spring 2013 26 (57%) 25 (54%) 2 lbs. 1458 Scale Score Points

  7. ≈ 55% ≈ 62% ≈ 75% ≈ 85% Posted at: lead4ward.com/resources Spring 2013 Raw Score Equivalents (Grades 5 and 8)

  8. adsfad http://www.tea.state.tx.us/student.assessment/staar/convtables/

  9. Questions? John Fessenden john@lead4ward.com

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