How we write & review our questions

Our editorial and review process — so you can trust that what you study is accurate, original, and current.

What we believe

We believe that with the right studying, full mock-exam practice, and targeted review of your weak areas, you can pass your exam on your own — no $400 course required.

How questions are authored

Every practice question and study chapter on PrepPass is written from scratch against primary sources — drafted with AI assistance and reviewed by our editorial team, never copied or paraphrased from a real exam.

  • Written from the authoritative source for each exam's field: public-domain statutes and board rules for regulatory and law exams (for example, the California Business & Professions Code for CSLB contractor exams), official exam guides and product documentation for technology exams (AWS, CompTIA), official test plans and clinical standards for healthcare (NCLEX, CNA), and regulator or vendor materials for finance and mortgage (SIE, NMLS).
  • Built to each exam's official blueprint or test plan, so the mix of questions matches the topic weighting the real test uses.
  • Original wording only. Real exam questions are copyrighted; we deliberately do not use them. Our questions teach the same underlying material in our own words.
  • Drafted with AI assistance and then editorially reviewed. Each question is tied to the specific source it tests — a statute for law exams, or the official exam guide, test plan, or documentation for technology, healthcare, and finance — so the explanation can cite that source rather than an opinion.

How questions are reviewed

Nothing is published on a single person's say-so. Every item goes through review before and after it goes live:

  • Editorial review — a second set of eyes checks each question against the current published rule and the official source before it ships.
  • Corrections loop — every page links to our feedback form. When a reader flags an error, we re-check it against the source and correct it, usually within a few business days.
  • Re-verification on rule changes — when a board updates fees, thresholds, or procedures, we re-check the affected questions against the new source.

Licensed-professional review is scoped to the specific content a named reviewer has actually checked — it does not apply to every exam. Our named reviewers and the exact scope each one has checked are listed on the reviewers page, with a public license-lookup link for every reviewer. Exams outside those scopes are written from official sources and checked by our editorial team; we add a licensed reviewer here only once they have actually reviewed specific content.

Who stands behind this

PrepPass is built and maintained by Sen Lin, its founder. Accountability for the content rests with a real, named person you can look up — not an anonymous brand.

Not affiliated with any licensing board

PrepPass is an independent study resource. We are not affiliated with, endorsed by, or sponsored by the California Contractors State License Board (CSLB), the California Board of Barbering and Cosmetology (BBC), the California Department of Insurance (CDI), PSI Services, or any other licensing authority. Always verify current fees, deadlines, and procedures with the official board before you rely on them.

Found an error? Tell us

Accuracy is a moving target and readers catch things we miss. If a question, answer, or explanation looks wrong, report it and we will re-check it against the source. You can also email support@preppass.org.

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Process last reviewed: July 2026

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