How do I read my Iowa Assessment scores?
The scale ranges from 1 to 99 and indicates the percent- age of students who earned higher or lower test scores . For example, if a student earned a percentile rank of 62, it means that he/she scored better than 62 percent of the students in the norm group, and that 38 percent scored as well or better.
How do you interpret test score?
Test scores are interpreted with a norm-referenced or criterion-referenced interpretation , or occasionally both. A norm-referenced interpretation means that the score conveys meaning about the examinee with regards to their standing among other examinees.
What does a grade equivalent score mean?
A grade equivalent (GE) score is described as both a growth score and a status score both. For example, if a seventh grade student earned a GE of 8.4 her raw score is like the raw score the typical student would likely earn on the same test at the end of the fourth month of the eighth grade .
What is developmental standard score?
Developmental Standard Score (DSS or SS) – The Developmental Standard Score provides a continuous growth scale of achievement from kindergarten through grade 12 for such tests as the Iowa Assessments.
What does a Stanine of 9 mean?
A stanine is a score from 1 to 9 with a. stanine of 9 indicating a very high level of general ability relative to the whole norm reference group, and. a stanine of 1 indicating a very low relative achievement.
What grades take Iowa assessments?
Iowa Test levels 5-8 are administered to students from Kindergarten through 2nd grade , while levels 9-14 are given to students from 3rd to 8th grade . Each Iowa Test level consists of a series of subtests that are administered in sections by content.
What is a good standard score?
Standard Score . Most students earn scores that fall in the range of 85 to 115. Many school psychologists and test publishers use the following categories to help explain average standard scores : Low Average 80 – 89; Average 90 – 109; High Average 110 – 119.
How will you interpret a student’s 80% percentile score the student scored?
Percentile Ranks If the student’s percentile rank is 80 , you know that 80 % of the students in the reference group received lower scores . A percentile rank indicates the percentage of scores falling below a certain score . Percentile scores range from 1 to 99.
How do you interpret discrimination?
The interpretation of High-Low Discrimination is similar to the interpretation of correlational indices: positive values indicate good discrimination , values near zero indicate that there is little discrimination , and negative discrimination indicates that the item is easier for low-scoring participants.
Is a standard score of 85 average?
For example, a standard score of 85 (16th percentile rank) on a test may be “ average ,” “low average ,” or even “below average ,” depending on the test publisher.
How is grade level determined?
The grade level score is calculated from each of the grade proficiencies, and each grade proficiency is the the percent of standards known per grade level . For example, a student that knows 80% of the kindergarten standards will have an 80% grade proficiency for kindergarten.
What does a percentile score mean?
“ Percentile ” is in everyday use, but there is no universal definition for it. The most common definition of a percentile is a number where a certain percentage of scores fall below that number. If you know that your score is in the 90th percentile , that means you scored better than 90% of people who took the test.
What does standard score mean?
In statistics, the standard score is the number of standard deviations by which the value of a raw score (i.e., an observed value or data point) is above or below the mean value of what is being observed or measured.
What is an average percentile rank?
Percentile ranks are often expressed as a number between 1 and 99, with 50 being the average . So if a student scored a percentile rank of 87, it would mean that they performed better than 87 percent of the other students in his norm group.
How do percentiles work?
If a child’s weight is at the 50th percentile line, that means that out of 100 normal children her age, 50 will be bigger than she is and 50 smaller. Similarly, if she is in the 75th percentile , that means that she is bigger than 75 children and smaller than only 25, compared with 100 children her age.