Grade 2 Test Scores Improve with Reflex
A study of grade 2 students found that those who regularly used Reflex achieved substantially higher growth on a nationally-normed mathematics assessment than their fellow students with little or no Reflex usage.
During the 2012-2013 school year, 322 grade 2 students from 6 Charlottesville City Schools (VA) had access to Reflex in their math program. The study compared fall and spring Measures of Academic Performance (MAP) test results of high-usage students — those with at least 40 days of Reflex usage between test administrations — to students with low or no usage (0-5 days) during the same time period.
The Northwest Evaluation Association (NWEA) MAP Mathematics test is a nationally-normed, computer-adaptive assessment used in many U.S. school districts. By administering the test multiple times during a school year, educators can gain a detailed picture of each student's current mathematical level and measure student growth over time. Because the test is nationally-normed, they can also compare their students' growth to that of students across the country.
Student Growth Comparison
|Group||Average Usage||Number of Students||Average Gain|
|■||Students With 40+ Days Usage||52.2 days||47||18.7|
|■||Students With 0-5 Days Usage||1.5 days||43||1.9|
Fall 2012 MAP Math test results indicated starting average scores for both groups fell near the national median. The high-usage group ranked in the 49.9th percentile, while the low-usage group ranked in the 51st percentile.
By the 2013 spring administration, results for the two groups had clearly separated. The high-usage group had advanced to the 68.6th percentile, an increase of 18.7 percentile points, while the low-usage group remained near the national median, increasing 1.9 points to the 52.9th percentile.
High Usage Group Percentile Growth
High-usage group students at both the low and high ends of national percentile ranks showed strong improvements.
The percentage of high-usage students in the lowest quartile declined from 21% to just 5%; and those in the lower half went from 50% to 21%. At the other end of the spectrum, the fraction of students in the top quartile increased from 30% to 48%.
|Percentile Rank||Fall 2012
(% of students)
(% of students)
|0-50||■ + ■||50%||21%|