How do we use the scale scores to add value and measure growth?
The ISA scale scores allow you to make direct comparisons between grade levels and over time. The class reports show the scale scores for each student for reading, mathematical literacy and writing. You can use the live Excel spreadsheet to group the students in different ways. You can directly compare the scale scores of students from one ISA testing year to the next to measure individual growth and you can calculate the mean scale scores separately for whatever subgroups you wish to create. The ISA school report shows the mean scale score for all other schools and for other like schools for all students and broken down into sub-groups by gender and English Language background. The average growth in scale scores between grade levels can be obtained by comparing the mean scale scores for different grade levels for all students and by the subgroups given. You can then see what normal progress between 3rd and 5th grade looks like in scale scores. You can then identify students who may ha
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