What is a student growth percentile?
A student growth percentile defines how much relative growth a student made. The Colorado Growth Model serves as a way for educators to understand how much growth a student makes relative to a students “academic peers.” More specifically, the Colorado Growth Model essentially compares each students current achievement to students in the same grade throughout the state who had similar CSAP scores in past years. The model then produces a student growth percentile. This score has some things in common with the childrens height and weight percentiles that pediatricians share with parents. Percentile scores have a relatively straightforward interpretation: A child that is in the 76th percentile in weight is as heavy or heavier than 76% of other children of the same age. But this is not a measure of growth, just a spot measurement of how much above or below the average a particular child is. In terms of Colorado Growth Model, a student growth percentile of 60 indicates the student grew as we
A student growth percentile (abbreviated SGP) measures how much a student’s performance has improved from one year to the next relative to his or her academic peers: other students statewide with a similar MCAS test score history. The calculation answers the question, “Among other students with similar MCAS test score histories in previous years, what is the range of scores attained this year?” The model then uses the answer to determine whether a student grew at a faster or slower rate than the students’ peers, or at a similar rate. The statistic is interpreted as follows: if John Smith, currently a grade 5 student, has a student growth percentile of 65 in English language arts, that means that John improved more between grades 4 and 5 than 65 percent of students statewide with a similar MCAS test score history. Similarly, if John had a student growth percentile of 44 in mathematics, it means that he improved more than only 44 percent of students statewide with a similar MCAS test sco
