When you analyze assessment data, keep these recommendations in mind:
- Clean your data before processing (e.g., remove any cases with missing or incomplete data).
- When analyzing test score growth, only compare scores for those students who have test scores in the same testing periods; for example, to compare Beginning Benchmark Test Literacy scores to Middle Benchmark Test Literacy scores, only include students who have data in both the "BMK 1 Literacy Score (Beginning)" and "BMK 2 Literacy Score (Middle)" columns.
- Analyze data for each grade level separately from other grade levels.
- Where state assessment-based performance level is known, analyze each performance level separately.
- Analyze subgroup data (e.g., special education; English language learners) separately from other student data.
- Consider student usage levels when interpreting results. For example, students who had limited access to Imagine Language & Literacy may not demonstrate the same level of growth as students who regularly used Imagine Language & Literacy.
- To understand how effective Imagine Language & Literacy is for specific students, analyze their Benchmark Test scores against their lessons attempted and lessons passed, in addition to usage time.
- Consider students’ starting points when interpreting results. Students whose beginning assessment scores are significantly below grade level may exhibit different growth patterns from students whose beginning assessment scores are at or above grade level.
Note: When analyzing test score growth, only compare scores for those students who have test scores in the same testing periods; for example, to compare the Beginning Benchmark Test Literacy scores and Middle Benchmark Test Literacy scores, only include students who have data in both the "BMK 1 Literacy Score (Beginning)" and "BMK 2 Literacy Score (Middle)" columns.
Analyzing Assessment Data for Student Growth
Student growth can be analyzed when two or more instances of the same assessment have been taken by the same group of students, with an appropriate amount of time elapsed between assessments to allow for student characteristics to advance. The Imagine Language & Literacy Reading Level Assessment and Benchmark Tests are both offered up to three times each school year with enough time between testing periods for student growth to be measured.
TO ANALYZE ASSESSMENT DATA FOR STUDENT GROWTH
- Isolate the data for all students who took two or more tests. For instance, if your goal is to measure growth from the beginning to the end of the school year, only students with scores on both the Beginning and End Tests should be included in your growth analysis.
- Calculate the growth score for each student who took all tests included in your analysis by subtracting Test Score 1 (such as the Beginning Benchmark Test) from Test Score 2 (such as the Middle Benchmark Test). Then average the individual growth scores for all the students in your analysis.
- As students’ skill levels grow across school years, the rate of growth which should be expected from students changes. The Imagine Language & Literacy Reading Level Assessment and Benchmark Tests reflect this reality. For this reason, student growth should be calculated for each grade separately.