Scaling (Curving) Grades Calculator
To calculate the scaled grade, multiply the original grade (OG) by 100, then divide by the maximum grade (MG).
The Scaling (Curving) Grades Calculator is used to adjust test or exam scores to fit a specific scale. This method is often employed when a test is particularly difficult, and a curve is applied to ensure fairness.
In other words, curving grades adjusts the raw scores to a more normalized distribution. For instance, if the highest score in a class is 80 out of 100, but the maximum grade is set to 90, the grades can be scaled accordingly to reflect a higher level of achievement.
Formula
| Variable | Description |
|---|---|
| SG | Scaled grade (final grade) |
| OG | Original grade (raw score) |
| MG | Maximum grade (highest possible score) |
Solved Calculations
Example 1:
For instance, if a student scored 75 on a test, and the maximum grade (MG) was 80, the scaled grade would be:
| Step | Calculation |
|---|---|
| Original Grade (OG) | 75 |
| Maximum Grade (MG) | 80 |
| Scaled Grade (SG) | |
| Result | 93.75 |
Answer: The scaled grade is 93.75.
Example 2:
Similarly, if another student scored 60 with a maximum grade of 70, the calculation would be:
| Step | Calculation |
|---|---|
| Original Grade (OG) | 60 |
| Maximum Grade (MG) | 70 |
| Scaled Grade (SG) | |
| Result | 85.71 |
Answer: The scaled grade is 85.71.
What is a Scaling (Curving) Grades Calculator?
The Scaling (Curving) Grades Calculator is a unique educational tool. It is tailormade for those educators who wish to adjust or “curve” their students’ grades. Simply, curving grades involves adjusting the distribution of scores to fit a desired statistical model, often using a bell curve.
This method is frequently used when a test is considered too difficult, or when the instructor wants to ensure fairness in grading by improving the overall performance of the class.
To use the Scaling (Curving) Grades Calculator, you input the raw scores of students, along with parameters such as the desired mean or standard deviation.
The calculator then applies the appropriate formula to adjust the grades according to the chosen curve, making it easier to calculate the final grades after curving. This tool can be particularly helpful when you want to scale the grades based on the average score or standard deviation, ensuring a fairer distribution of results.
Final Words:
To summarize, the Scaling (Curving) Grades Calculator is an invaluable tool for instructors who want to adjust grades using a statistical model, ensuring fairness and consistency in the grading process.
