What is the p-value?

What is the p-value of a question?

What exactly is the p-value of a question? Converted to a percentage (* 100), the p-value indicates a percentage of candidates who answered the item correctly. Thus, with a high p-value, the question is relatively simple and almost every candidate got the question right. If you have a low p-value, then the question was too difficult. In that case, the proportion of candidates who got the question correct is too low.

What is a good p-value?

If you want to make a good assessment, make sure you have a good balance of question types. An assessment should not be too difficult, but not too easy either. A good p-value varies according to the number of answer options available. You can use the table below as a guideline:

What is an optimal p-value?

What is a good p-value?


Calculate P-value of a question

Suppose you have a question in your assessment that you take from 100 students. You perform statistical analysis by calculating the number of correct answers. Suppose 60% of the candidates get the question right, then there is a p-value of 0.60.

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