Alcohol, drugs and distractionQuestion 339 of 345

Which statement about cannabis and driving is correct?

  1. It improves reaction time
  2. It has no effect on perception
  3. It is a safe substitute for drinking
  4. It can make your concentration wander
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Correct answer: It can make your concentration wander

Cannabis also causes drowsiness and distorted perception.

Source: Saskatchewan Driver's Handbook (SGI, 2026-27), 7.2 Drugs, page 171

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Questions last reviewed: 18 October 2026