Date post: | 28-Dec-2015 |
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Making Sense of Standardized Test
Scores
Presenter: Misty Nix
What types of scores are out there?
Discussion
Types of Scores
Percentiles
Grade-Equivalent Scores
Scale Scores
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.
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.
Percentiles
BiggestAdvantage
Typically understood by
most of the general public and parents.
BiggestDisadvantage
Scores are dependant on the quality of
the norm group.
Discussion
Questions/Comments about Percentiles
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 Scores
Still not quite making sense?
Grade 7.3 Month
Grade-Equivalent Scores
Biggest Disadvantage
These types of scores are often
time misinterpreted.
Biggest Advantage
These scores are easy to
communicate to parents.
Discussion
Questions/Comments about Grade-Equivalent 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 Scores
Scale Scores
Biggest Advantage
Very useful in equalizing
difficulties of different test
forms.
BiggestDisadvantageThese types of scores
are not easy to interpret unless you
know the passing scale score.
Discussion
Questions/Comments about Scale Scores
Thank You for Your Time