Final answer:
Cannabis use is not associated with good grades and attendance, but instead has negative effects on cognitive function and mental health disorders.
Step-by-step explanation:
The question is asking about the strong association of cannabis use with certain outcomes: good grades, good attendance, psychiatric disorders, and spelling disorders. It is important to note that scientific research indicates that cannabis use is not associated with better academic performance. In fact, studies have shown that regular cannabis use can negatively impact cognitive function, memory, and attention, which can ultimately affect academic performance. Additionally, cannabis use has been linked to an increased risk of developing mental health disorders, such as anxiety and depression.
Learn more about Effects of cannabis use on academic performance and mental health