Question

consider this claim:
later school start times positively affect the health of middle and high school students.
which is the strongest evidence to support the claim?
according to an online survey, many parents report that
early school start times frequently contribute to chaotic
mornings and missing the bus.
citing the positive impact later start times have on class
schedules, several teachers groups have made public
statements recommending later start times for middle and
high school students.
sleep is critical to the health of teenagers, and a study
published in a scientific magazine found that later school
start times were associated with more sleep in high school
students.

Explanation:

• First option: Parent reports about chaotic mornings/missing buses relate to daily routines, not directly to student health.
• Second option: Teachers' recommendations about class schedules don't directly address student health.
• Third option: Links sleep (critical for teen health) to later start times via a scientific study, directly supporting the claim about health impact.

Answer:

Sleep is critical to the health of teenagers, and a study published in a scientific magazine found that later school start times were associated with more sleep in high school students.