Source A: students who sleep eight hours score higher on quizzes. Source B: the same higher scores appear, but only among students under 15. What do the two sources agree on?

Source A: students who sleep eight hours score higher. Source B: that pattern appears only among students under 15. What is their disagreement actually about?

Source A counted beach plastic every Monday. Source B counted only after storms. Source A reports light waste; Source B reports heavy waste. What is their disagreement most likely about?

Source A surveyed 200 Grade 9 students about screen time. Source B interviewed 12 students at length. Both report about three hours a night. Where do the two sources differ?

Source A: Grade 9 students average three hours of screen time a night. Source B: the average is two hours and forty minutes. Both call that level high for school nights. What do they agree on?

Two sources report the same average screen time. Source A calls it a warning sign for sleep. Source B calls it normal for this age group. What is their disagreement actually about?

Source A reports the town square is two degrees Celsius warmer than the park. Source B, measuring the same square in the same weeks, reports no difference. What is their disagreement about?

Source A finds the square two degrees warmer; Source B finds no difference. A student writes, "Source A is right because it is longer." Why is that a weak way to settle the disagreement?

Source A: students read more when the library opens at lunch. Source B: lunch opening changed nothing, but reading rose when teachers read aloud. Where do the two sources differ?

Sources A and B disagree about lunchtime library hours. A review says only, "Source B is newer, so it is correct." What is wrong with that sentence?

Source A: students who travel over an hour to school arrive tired more often. Source B: that tiredness shows up too in students whose trip takes only 40 minutes. What do they agree on?

Source A studied only students who travel over an hour. Source B studied every student in one school, whatever the travel time. Both report more tiredness with longer trips. What differs?

Source A asked students to remember last week's canteen meals. Source B recorded what students bought each day. Source A reports more vegetables than Source B. What is the disagreement most likely about?

Two sources disagree about vegetable choices in the canteen. A student writes, "Source B comes from a bigger school, so ignore Source A." What should the review do instead?

Two sources can report the same numbers and still disagree about what those numbers mean.

Source A: canteen posters raised fruit sales. Source B: sales rose only while free samples were given out. Which sentence best states where these sources agree and disagree?

Source A and Source B both count 30 percent more insects in the school garden after mulching. Source A calls this a sign of healthy soil; Source B calls it a pest warning. What is the disagreement about?

Two sources disagree about whether later homework raises sleep loss. Which response deals with the disagreement fairly?

Source A: streets with trees are cooler at noon than bare streets. Source B: that cooling is real but shrinks to almost nothing by six in the evening. What do the two sources agree on?

Source A: a coastal town's plastic waste falls after a cleanup drive. Source B: the waste in that town returns to its old level within a month. Where do the two sources differ?