Comparing And Scaling Investigation 2.3 Answer Key
Comparing And Scaling Investigation 2.3 Answer Key >>>>> https://urlca.com/2tb3tN
If you are scoring a test that has a very different structure from the one for which you are scoring, the value of the norm referenced score will be limited. For example, if your school is scoring a test using 20 multiple-choice questions that was normed using a test that had 200 multiple-choice questions, students who answered 75% of the questions correctly on the test would have a score of 60% on your test.
When a score is presented as a percentile, it is easy to see the overall performance of the student as compared to the other students in the testing group. Percentiles also provide context by indicating the performance of the student in comparison with his/her peers. Because students perform differently in each subject area and on different scales, a percentile grade can be used to compare scores across all subjects. A score of 85 in math would be markedly different from a score of 70 because only one question affects the student’s math score. In reading, a score of 85 is significant because it is slightly above the median reading score of 80% of students.
Norm referencing also gives meaning to the raw scores on standardized tests. Raw scores are useless to teachers unless they are expressed in terms of the appropriate grade level and norm group. The raw score is the number of questions answered correctly on a test. Teachers and parents usually do not know how to interpret the raw score, but if the score is expressed as a percentile, then the percentile can be converted to a grade level using this chart:
Norm referencing benefits students and schools. Students who receive the percentile score benefit because they are compared to their peers instead of being compared to a group of students of the same age, grade, and ability. Students who have low scores can seek support and intervention.
Norm referencing also provides an opportunity to compare scores of students to a specific norm group (e.g., the norms for a neighborhood, school, state, or country). For example, a student who scored between the 5th and 25th percentiles for the 8th grade English test would be a bit of a failure compared to the 5th to 25th percentiles for his or her peers. It would be a bit of a failure compared to the norm group he or she lives with, or to the norm group of the parents or relatives. 827ec27edc