Final answer:
Paragraph (b) "Some believe that gaming contributes to sedentary behavior" explains why video games may not be beneficial for kids. Research shows that violent video games can increase aggression, though the causality of this link is debated. Different video games have various effects on children, with outdoor play being particularly beneficial for health and engagement.
Step-by-step explanation:
The question asks which paragraph in the section "Of Course There Are Doubters" from the article "Gaming makes kids physically fit? New research says yes. Maybe," explains why playing video games may not be a good choice for kids. The correct paragraph is (b) "Some believe that gaming contributes to sedentary behavior." This option is the only one that directly states a negative effect of gaming on children, which is leading to more sedentary lifestyles.
The research on video game violence and its effects on aggression, according to psychologists Anderson and Bushman, shows that playing violent video games can increase aggressive thoughts, emotions, and potentially lead to aggressive behavior. Several studies, including meta-analyses, have debated the extent of this effect. While some studies found increased aggression, others indicated that while there is a correlation between aggressive individuals and the playing of violent video games, it does not confirm video games as a cause of violent behavior.
It is important to differentiate between various types of impact that video games might have on children. Some games are designed to improve cognitive skills and might aid in real-world application, but others, especially those with violent content, have been shown to influence aggressive tendencies. Outdoor play is highlighted as beneficial for children's health, providing valuable exercise and engagement with the real world, which is often lacking in video game play.