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SDS practice questions - frequently asked questions

Plain answers about how SDS Exam Prep works: the exam, the questions, pricing, the free trial, and what you actually get.

No - and you should be wary of any site claiming otherwise. Every question here is original, written to mirror the style, difficulty, and judgment the real SDS exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The SDS exam spans 5 domains: PRE-TESTING — 29 of160 scored items; SLEEP DISORDERS TESTING — 37 of160 scored items; STUDY ANALYSIS — 53 of160 scored items; ADMINISTRATIVE FUNCTIONS — 8 of160 scored items; TREATMENT PLAN — 33 of160 scored items. Every practice question on this site is tagged to one of these domains.

The SDS exam has 180 questions and is completed in 4 hours. Our timed practice mirrors that length and pacing, so exam day feels familiar.

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