Reword the following answer: Without the specific article in question, I can only provide a general interpretation based on the title and the common structure of such studies. 1. Main Purpose: The main purpose of this study, as suggested by the title, is likely to investigate the relationship between childhood bullying behaviors, conduct problems, and cognitive functioning. 2. Key Questions: The key questions the author might be addressing could include: How do childhood bullying behaviors and conduct problems relate to cognitive functioning? Does bullying behavior influence cognitive functioning, or vice versa? 3. Conclusion: Without the specific article, I can't provide the exact conclusion. However, it's likely that the author found some form of association between bullying behaviors, conduct problems, and cognitive functioning. 4. Information Collection: In a nationally representative cohort study, the researchers would typically collect information through surveys, interviews, or assessments conducted on a large, diverse group of individuals representative of a national population. 5. Independent and Dependent Variables: The independent variables are likely the childhood bullying behaviors and conduct problems, as these are the factors being manipulated or observed for their potential effects. The dependent variable is likely cognitive functioning, as this is the outcome that the researchers are measuring. 6. Limitations: Without the specific article, it's hard to say what the limitations are. However, common limitations in such studies might include self-repo