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Making Sense of Standardized Test Scores. Presenter: Misty Nix. Discussion. What types of scores are out there?. Types of Scores. Percentiles Grade-Equivalent Scores Scale Scores. Percentiles.

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discussion
Discussion

What types of scores are out there?

types of scores
Types of Scores

Percentiles

Grade-Equivalent Scores

Scale Scores

percentiles
Percentiles
  • This type of score comes from a comparison of a student’s score to other students’ scores in a norm group (group of students being tested).
  • Example: If a student scores in the 75th percentile this means that this student preformed better than 75% of the students in the norm group.
percentiles1
Percentiles

Still not making sense?

Let us look at it from a different angle.

  • If the student scored in the 75th percentile only 25% of students in the norm group preformed just as well or better than this student.
  • Another way of putting it is that this student is in the top 25% of the norm group.
percentiles2
Percentiles

Biggest

Advantage

Typically understood by most of the general public and parents.

Biggest

Disadvantage

Scores are dependant on the quality of the norm group.

discussion1
Discussion

Questions/Comments about Percentiles

grade equivalent scores
Grade-Equivalent Scores
  • This score is an indicator of student test performance based on grade level and months of the school year.
  • Example: a student who scored a 7.3 on a mathematics test would be function in this subject like an average 7th grader in their 3rd month of the school year.
grade equivalent scores1
Grade-Equivalent Scores

Still not quite making sense?

Grade 7.3 Month

grade equivalent scores2
Grade-Equivalent Scores

Biggest

Disadvantage

These types of scores are often time misinterpreted.

Biggest

Advantage

These scores are easy to communicate to parents.

discussion2
Discussion

Questions/Comments about Grade-Equivalent Scores

scale scores
Scale Scores
  • This type of score is where the student’s raw score is converted to number that fall on a scale.
  • An example that would directly affect you would be the Scholastic Aptitude Test (SAT) or the Miller’s Analogy Test (MAT). You didn’t receive your raw scores you got a 3 digit number.
scale scores2
Scale Scores

Biggest

Advantage

Very useful in equalizing difficulties of different test forms.

Biggest

Disadvantage

These types of scores are not easy to interpret unless you know the passing scale score.

discussion3
Discussion

Questions/Comments about Scale Scores