On occasion, it may be difficult to understand why the system adjusted some students and not others. If your student did not receive an automatic lexile adjustment, it's possible that they did not meet the monthly adjustment requirements. Each month, the system evaluates students' performance on multiple-choice activities to determine if they are eligible for more rigorous content. This calculation is done on the last day of each month and teachers are notified of any lexile changes in their notifications. There are a couple of reasons why a student's Lexile score may not change each month.
- Students must complete a minimum of four valid multiple-choice activities during Supervised Student Work Time in order for the Bayesian algorithm to have enough data to review their scores.
- Please know that completion of four or more activities does not guarantee that the Lexile will change - only that the score will be reviewed to determine if any change is needed. Since reading ability does not progress linearly, there will be some months where students’ lexiles do not change (or even decrease).
- Students that consistently score at or below 75% on activities may not be ready for more rigorous text. This is normal, especially for older students. Just have them do their best work and keep completing activity questions! Although the formula primarily relies on activity performance, other factors are considered as well. These include the student’s particular lexile level, the difficulty of the passage, and the rate of growth of students at that lexile level nationally.