Attention deficit hyperactivity disorder (ADHD) is one of the most common childhood neurodevelopmental disorders. According to psychologists, children who spend more time with electronic devices have more risk of meeting the criteria for an ADHD diagnosis. In fact, the risk is about 7.7 times greater for children logging more than 2 hours of screen time daily compared to those who spend less than 30 minutes.Choice B is the best answer. The transition word “In fact” logically signals that the statement that follows expands upon the information or supports the claim made in the previous sentence. As used in the text, it connects the information about children who spend more time with electronic devices being at higher risk of an ADHD diagnosis with facts about that risk.
Choice A: “However” illogically signals that the risk being 7.7 times higher for children logging 2 hours of screen time would oppose or contradict the idea of children being at a high risk for an ADHD diagnosis, which is not the case. The following sentence is expanding upon the preceding information by providing detailed facts or evidence.
Choice C: “In comparison” illogically signals that the information in this sentence is being compared to the information in the previous sentence. Instead, the information is adding to the preceding information, indicating exactly how many times higher the risk for an ADHD diagnosis is for children who log more than 2 hours of screen time.
Choice D: “Likewise” illogically signals a similarity between the two pieces of information (children being at higher risk for an ADHD diagnosis and the risk being 7.7 times higher for children logging 2 hours of screen time). Although the information is related, the following sentence is expanding upon the information by providing detailed facts or evidence.
✨ Expert's Tip ✨
- Identify the main idea of the passage: the risk of an ADHD diagnosis for children who spend more time with electronic devices.
- Look for a relationship between the passage’s ideas: expanding upon an information.
- Choose an appropriate transition word to match the relationship: in fact.