SAT OwlQuestion bank / Command of Evidence
| Grade | Average daily screen time (hours) | Average nightly sleep (hours) |
|---|---|---|
| 6 | 3.1 | 9.2 |
| 8 | 4.4 | 8.6 |
| 10 | 5.6 | 7.9 |
| 12 | 6.2 | 7.1 |
A team of researchers surveyed students in a school district about their daily habits. They found that as grade level increased, students reported spending more time on screens each day and sleeping fewer hours each night. For example, ______
Which choice most effectively uses data from the table to complete the example?
6th graders reported 3.1 hours of daily screen time and 9.2 hours of nightly sleep, while 12th graders reported 6.2 hours of screen time and 7.1 hours of sleep.
10th graders reported 7.9 hours of nightly sleep, which was more than the 8.6 hours reported by 8th graders.
8th graders reported 4.4 hours of daily screen time, which was more than the 3.1 hours reported by 12th graders.
students in every grade reported sleeping more hours each night than they spent on screens each day.
Show answer and explanation
Answer: A
The example must show both trends: screen time rising and sleep falling as grade increases. Choice A compares the lowest and highest grades and shows screen time going up (3.1 to 6.2) and sleep going down (9.2 to 7.1). Choices B and C misread the table, since 7.9 is less than 8.6 and 3.1 is the 6th-grade figure.
Choice D is accurate according to the table, but it does not illustrate the change across grade levels that the example is supposed to show.
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