Comparing Changes from One Year to Another in
One Group
Comparisons between years (cohorts) within a single classroom, school or district are certainly informative. But wise consumers might have other questions: Are the changes seen over time in my school (or district) greater than those that may have occurred in another school (or district)? Are the changes at my school (or district) large enough, when compared to the changes in the other group, to be considered educationally important? These comparisons involve cohorts, two groups that are independent of each other but passing through the same organization, such as fourth graders in one year and fourth graders in another year. Click below to see examples of these analyses, each of which builds on data presented in other examples.
Comparing Changes in the Percentage of Students at Benchmark in Two Schools Click Here
Comparing Changes in Average Scores of Students in Two Schools Click Here
Comparing Changes over Time in Percentile Rank of the Average Student in Two Classrooms Click Here