# California RDA written exam how many questions

Answer: The Registered Dental Assistant Combined Written and Law and Ethics Examination is a single 125-item, 3-hour computer-based test at PSI centers (100 scored items plus 25 unscored pretest), scored pass/fail on a criterion-referenced standard — not a fixed 75%. In June 2026 the Dental Board reported a 72% overall pass rate, with the work-experience pathway at 62% and repeat testers at 38%.

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Answer intent ID: `california-rda-combined-exam-facts`
Cluster: California RDH and RDA exams
Last verified: 2026-07-24
Reviewer: see source page

## Direct answer

The Registered Dental Assistant Combined Written and Law and Ethics Examination is a single 125-item, 3-hour computer-based test at PSI centers (100 scored items plus 25 unscored pretest), scored pass/fail on a criterion-referenced standard — not a fixed 75%. In June 2026 the Dental Board reported a 72% overall pass rate, with the work-experience pathway at 62% and repeat testers at 38%.

## Query patterns

- California RDA written exam how many questions
- RDA combined written and law and ethics examination
- California RDA exam pass rate

Source citations:
- `DBC-RDA-OUTLINE` Dental Board of California RDA Combined Written and Law and Ethics Examination Outline. Primary. Verified 2026-07-24. <https://www.dbc.ca.gov/formspubs/rda_exam_outline.pdf>
- `DBC-RDA-STATS` Dental Board of California RDA Combined Written and Law and Ethics Examination Statistics (June 2026). Primary. Verified 2026-07-24. <https://www.dbc.ca.gov/formspubs/rda_062026.pdf>

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