PREP Method: Two Meanings and How to Use Each in Interviews

The PREP method is a four-step way to give a clear, well-supported answer. The acronym is used in two ways, and it helps to know both.

PREP in public speaking: Point, Reason, Example, Point

A business communication textbook published on Lumen Learning describes PREP as a way to organize impromptu remarks:

1. Point: state your view.
2. Reason: give the reason for it.
3. Example: support it with a fact or a personal experience.
4. Point: restate your view.

This version fits opinion questions in interviews, such as “What makes a good manager?” or “How do you feel about working in an open office?”

PREP in Offermic: Problem, Reasoning, Example, Practical

For technical and conceptual questions, Offermic uses a variant built for explaining how you would solve a problem:

Part	What to cover
Problem	Restate what is being asked and any constraints
Reasoning	How you would think about it, including trade-offs
Example	A time you used this approach, or a concrete illustration
Practical	How you would apply it on the job and what you would watch for

Offermic’s technical questions are conceptual, for example “Walk me through how you would approach debugging an issue that only happens intermittently.” They are not live coding exercises.

PREP example (Offermic version)

Question: “How would you decide between building a custom solution and using an existing library?”

Example answer (mid-level software engineer):

• Problem: “The real question is total cost over time: build cost, maintenance, and risk.”
• Reasoning: “I’d check whether the library covers our core need, how active its maintenance is, its license, and whether the feature is core to our product. Core, differentiating features lean toward building.”
• Example: “On my last team we replaced a homegrown date-handling module with a well-maintained library and removed a recurring class of time-zone bugs.”
• Practical: “I’d write a short decision note with those criteria so the team can revisit it later.”

How Offermic scores PREP answers

Feedback on technical answers looks at accuracy, depth, problem-solving, communication and practical application. Clear communication matters as much as the right answer.

For behavioral questions use the STAR method instead. See the tech interview hub for more conceptual questions, and practice explaining something complex.