Which of these is the BEST example of a substance-induced disorder?

The best example of a substance-induced disorder is methamphetamine psychosis because it directly results from the use of a substance—in this case, methamphetamine. Substance-induced disorders occur due to the direct physiological effects of a drug, which can lead to symptoms such as hallucinations, paranoia, or delusions, indicative of psychosis. The effects arise during or shortly after substance use, aligning perfectly with the definition of a substance-induced disorder.

While alcohol withdrawal syndrome can also be classified as a substance-related disorder, it specifically pertains to withdrawal effects experienced after cessation of alcohol use rather than the acute impact of the substance itself during active use. Nicotine dependence refers to an addiction rather than a direct sensory or cognitive disturbance caused by immediate substance use, thus not fitting the criteria as strongly as methamphetamine psychosis. Caffeine-related insomnia, while a recognized issue, typically does not exhibit the same level of severe psychological impact observed in methamphetamine-induced psychosis.