2.1 Current Format After the OPES Update

The Current Item Count To Use

The current California Registered Dental Assistant Combined Written and Law and Ethics Examination has 100 scorable items and 25 pretest items, for 125 total items. The time limit remains 3 hours. Those are the numbers candidates should use for pacing, practice sets, and study-guide logistics.

The reason this needs emphasis is that source history can confuse candidates. The source brief notes that earlier candidate information bulletin language used a larger scorable-item count. The August 14, 2025 Dental Assisting Council meeting materials include the OPES update stating that beginning November 1, 2025, the RDA Written Examination is reduced to 100 scorable items while retaining 25 pretest items. For current preparation, the OPES update controls the active format described in this guide.

What Pretest Items Mean

Pretest items are used for exam development. They appear with the scored content, but candidates are not told which items are pretest. The only safe strategy is to answer every item seriously. A strange-looking question may still be scorable, and a normal-looking question may be pretest. Trying to guess which items count is wasted effort.

The presence of pretest items also means that the number of items you see is not the same as the number of items used for scoring. You still need stamina for all 125 total items. You should not slow down because you think an item is experimental, and you should not speed through the last part of the exam because you assume the remaining items do not matter.

Why OPES Matters

OPES stands for the Office of Professional Examination Services. In this context, the OPES update is important because it explains the item-count change and the passing-standard modernization for the RDA examination program. Candidates do not need to become psychometricians, but they do need to know which exam facts are current.

A candidate using old notes might overbuild a practice schedule around an outdated scorable count. Another candidate might assume the time limit changed when the item count changed. The source brief corrects both errors. The scorable count is now 100, the pretest count remains 25, and the time limit remains 3 hours.

Current-Format Checklist

1. Write 100 scorable plus 25 pretest at the top of your exam facts page.
2. Practice with 125 total items when building full-length stamina.
3. Use 3 hours as the timing window for pacing drills.
4. Treat every item as worth careful work because pretest items are not labeled.
5. Use the OPES update for the current format when older wording conflicts.
6. Avoid translating the current format into an unsupported percent needed to pass.

Study Consequences

The updated format should make your study plan more precise, not more relaxed. The RDA outline still includes four major domains. Dental Procedures remains the largest domain. Infection Control and Health and Safety remains a major part of the exam. Assessment and Diagnostic Records and Laws and Regulations remain meaningful sources of scored content. The item reduction does not remove the need for broad duty-based competence.

In practical terms, you should build mixed practice sets that include dental procedures, patient assessment, diagnostic records, infection control, safety, consent, records, reporting, professional conduct, and scope boundaries. The exam identity is combined, so a clinical scenario can include legal or safety judgment. Current logistics tell you how long the exam lasts and how many items you will see. The outline tells you what job duties those items are designed to measure.