Square Root Curve Calculator

In the education system, the grading curve is a widely used method that helps to adjust students scores. We will explain the Square Root Curve grading method which is commonly used in the grading system. This method allows us to adjust the scores of the poorly performing students while ensuring that the higher scores increase at a slow rate. In this post, we will explore its formula, definition, and real-world example.

What is the Square Root Curve?

The Square Root Curve is a grading method that helps students balance difficulty and fairness. This concept is mainly used when an assignment or exam is tough; it ensures that students who performed poorly still receive a reasonable grade improvement. Dive deep to discover the formula and a real-world example.

We will need following formula in order to precisely calculate the Square Root Curve:

Formula:

$$$ \text{Square Root Curve Grade}=\sqrt{\text{Percentage Grade}}\times \text{10}$$$

If you want to reverse the process to get the original percentage grade, you just need to use this formula

$$$ \text{Percentage Grade}={\left(\frac{\text{Square Root Curve Grade}}{10}\right)}^2$$$

Square Root Curve Grade Chart

Below is the visual representation in the chart shape:

Square Root Curve's Real World Examples

Let's look at an example to understand the square root curve concept deeply.

Example:

Suppose a student's score is 49% in an exam; let's compute using the formula:

$$$ \text{Square Root Curve Grade}=\sqrt{49}\times 10$$$

$$$ =7\times 10$$$

$$$ \text{Square Root Curve Grade}=70$$$

Thus, after using the Square Root Curve the student now gets a new grade which is 70%.

Real World Uses of the Square Root Curve

This concept is widely used in various grading systems; the following are some real-world applications.

1. University Exam Grading
2. Standardized Test Adjustments
3. Corporate Training Assessments
4. Scholarship Eligibility Adjustments
5. Performance Adjustments in Online Learning Platforms