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 • 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 Biggest Advantage Typically understood by most of the general public and parents. Biggest Disadvantage 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 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.
Discussion Questions/Comments about Scale Scores