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How difficult is a question?

To a subject matter expert, almost every question feels easy. Learn how Difficulty Calibration predicts how difficult a question will feel before any learner has answered it.

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Browse fresh analysis, customer stories, and best practices to keep your teams audit-ready.

We are ISO-27001 recertified

Drillster news

An ISO certification describes how companies deal with their information security processes. It is done to ensure the confidentiality, accessibility, and integrity of a company’s information. This quality label is crucial for companies who want to reassure clients of their data safety. As a company, Drillster always takes the information security process seriously. Our achievement for the ISO-27001 recertification is evidence that we operate in accordance with strict security rules and requirements. Our certificate can be foundhere.