If you teach, then you need to know how to calculate test scores. You may not be a math teacher, but you still need to do the math when it comes to calculating test scores for your students. When an essay is involved in a test, it isn't so cut and dry in grading. You may be just a parent or a student who wants to figure out how you received a certain score. You can figure it out. Depending on whether the assignment was graded on a curve, the scores will dictate where the cutoffs should be.

Consult Other Instructors

Always check with other teachers to see how they calculate their test scores. They may offer insights on different ways that they score their tests including using curves or how they grade essays. When calculating test scores, always use a calculator to minimize errors. Calculate more than once to double-check your calculation. As an example, test grading apps are now available to streamline the process.

Types of Test Curves

Remember that if no student scores above 90 percent, you might want to consider using a "curve" to grade the exams. You can either use mode, median or a "bell curve" for creating your curve.

Initial Calculations

Take a calculator and type in the number of questions there are on the test. The questions on the test should be numbered for you already. If they are not, then count them yourself.

Calculate Highest Possible Score

Divide the number of questions into 100, which is the highest score a student can receive on a test.

Determine Question Value

Take the number you received from dividing into 100 and multiply it with the number of wrong answers. The number you received from dividing into 100 is how much each question is worth.

Determine True Test Score

Type the number 100 into the calculator, and subtract the number that you received that represents the wrong answers. The result will be the true score on the test.

Calculating Essay Score

To calculate a test score for an essay properly, score different aspects of the essay. If an essay is involved, there are different features of the essay that will need scores. One of these aspects is grammar while others include proper sentence structure, spelling and punctuation.

Essay Section Value Calculation

Give 10 points for each category when an essay is involved. If this is done, realize that the remaining questions will need to be re-evaluated for score worth. For example, let's say you have 10 questions and an essay. If the essay is worth 30 points in total (10 points for grammar, 10 points for sentence structure, 10 points for spelling and punctuation), then you need to take the 10 questions and divide them into 100 to find the true worth of each question.

Calculate Essay Test Score

Take the value of each question, and multiply it with the amount of wrong answers. Subtract that from 100, and add to the 30 points if earned to find test scores.

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