After students have started on their CBMs, it is important for teachers to be able to track their progress to determine a student’s response to the interventions. The Classworks Progress Monitoring Report gives the teacher the ability to monitor just that.
Classworks determines the effectiveness of the intervention by taking into account the following factors:
- The grade level of the CBM
- The duration of the intervention
- The frequency of probes
- The target rate of improvement
- Student results on the probes
The Trend Line
The student's trend line is a prediction of how a student will progress during the intervention period, based on their CBM results. This is initially calculated after three probes have been completed. On the report, Classworks calculates the trend line, also known as the rate of improvement or slope, using an ordinary least squares regression equation. In essence, it comes down to the number of points the student is expected to improve each week.
As the students take additional probes, Classworks uses the new scores to adjust the trend line and improve the accuracy of the prediction.
The Target Line (also known as the aim line)
The target line on the report shows how the student is expected to grow over the duration of the intervention. This is determined by looking at the student’s first CBM result and taking into account the target rate of improvement that was set when creating the CBM. Setting the CBM’s rate of improvement at moderate will set a slope of 2, while Aggressive will have a slope of 3.
What to look for
The main thing to look for when examining the report is comparing the student’s trend line to the target line. Although it is calculated using individual scores, over time the student’s trend line should be sloping very closely to the target line. If it is sloping steeply above or below the target line, the student’s intervention might need to be addressed.
Let’s look at some examples…
Here you can see 3 different students that took the same CBM over the course of 4 weeks.
Student 1’s Rate of Improvement (blue dotted line) is trending below the Target Rate of Improvement (solid green line). Out of their 4 scores, 2 of them are above the green line, but their most recent score is below. What is important to note is that the individual scores are used to determine the student's rate of improvement as shown by the direction the dotted blue line is heading over time.
In this example, it may be best to reevaluate the student’s intervention.
Student 2’s Rate of Improvement (blue dotted line) is trending just above the Target Rate of Improvement (solid green line). Out of their 4 scores, all of them are at or above the green line. This shows that the student’s performance is trending at a pace to meet the Target Rate of Improvement.
In this example, the student seems to be responding well to the intervention!
Lastly, Student 3’s Rate of Improvement (blue dotted line) is trending well above the Target Rate of Improvement (solid green line). Out of their 4 scores, all of them are well above the green line. This shows that the student’s performance is trending at a pace well above the Target Rate of Improvement.
In this example, the CBM level may not be ideal for the student. Placing them on the next level of CBM may be the best option for them, or, after evaluating, they may be ready to move out of Tier 2!