Guessing Correction | MCQs

Explanation

To apply the guessing correction formula for Multiple Choice Questions (MCQs), we need to know the number of options (N). In MCQ items with four options, there are typically 4 options to choose from.

Given:

Number of correct answers (R) = 70

Number of incorrect answers (W) = 30

Number of options (N) = 4

Using the guessing correction formula:

S=R−(W/N−1)

Substituting the values:

S=70−(30/4−1)

S=70−(30/3)

S= 70 − 10= 60

So, the score of a student getting 70 correct and 30 incorrect answers in an MCQ item with four options, by applying the guessing correction formula, will be 60. Therefore, the correct option is 60.

Explanation

The most commonly used guessing correction formula to predict and control is S = R - (W/N - 1), where:

• S represents the corrected score
• R represents the raw score
• W represents the number of incorrect options selected by the student
• N represents the total number of options in the multiple-choice question.