Debate Worksheet: Strong and Weak Evidence

Debate lesson 3: Strong and weak evidence · Set 595 · 40 questions

Debater's tip (Relevant, specific, reliable): Relevant: does it talk about the topic of the motion? Specific: does it say exactly who, what, where or how many? “30 of 40 students” beats “lots of students”. Reliable: can we trust where it came from? Records, textbooks and official bodies beat rumours and unsigned posts.

1. 1.True or false: a story you are not sure about is strong evidence. (a) True (b) False
2. 2.True or false: “I think I dreamt it.” — this is weak because it is not specific (no who, what or how many). (a) False (b) True
3. 3.🔎 Strong or weak evidence: an unsigned post with no source? (a) strong evidence (b) weak evidence
4. 4.True or false: “Lots of people think so.” is weak evidence. (a) False (b) True
5. 5.True or false: the school library’s record of books borrowed is strong evidence. (a) False (b) True
6. 6.🔎 Which is more specific? (a) 30 of 40 students (b) lots of students
7. 7.🔎 Why is this weak evidence? “I think I dreamt it.” (a) not specific (b) not relevant (c) not reliable
8. 8.True or false: measured results from our class experiment is weak evidence. (a) True (b) False
9. 9.True or false: the attendance register for the whole year is weak evidence. (a) True (b) False
10. 10.🔎 Before using a number in a debate, you should… (a) hide the source (b) round it to 100 (c) check where it came from (d) make it bigger
11. 11.True or false: “Some people say it helps somehow.” — this is weak because it is not specific (no who, what or how many). (a) False (b) True
12. 12.True or false: In a debate on saving water: “My favourite colour is green.” — this is weak because it is not relevant to the topic. (a) False (b) True
13. 13.🔎 Strong or weak evidence: “My cousin said so.”? (a) weak evidence (b) strong evidence
14. 14.True or false: “I saw it on a random poster once.” — this is weak because it is not specific (no who, what or how many). (a) True (b) False
15. 15.True or false: a rumour forwarded in a chat group is weak evidence. (a) False (b) True
16. 16.🔎 Why is this weak evidence? “Some people say it helps somehow.” (a) not specific (b) not relevant (c) not reliable
17. 17.🔎 Why is this weak evidence? “A forwarded message says so.” (a) not reliable (b) not relevant (c) not specific
18. 18.🔎 Why is this weak evidence? “Studies show things.” (a) not relevant (b) not reliable (c) not specific
19. 19.🔎 Strong or weak evidence: figures from the city water board? (a) strong evidence (b) weak evidence
20. 20.True or false: “A website with no name says so.” — this is weak because it is not relevant to the topic. (a) False (b) True
21. 21.True or false: the school nurse’s record of sick days is strong evidence. (a) False (b) True
22. 22.🔎 Why is this weak evidence? “I saw it on a random poster once.” (a) not reliable (b) not relevant (c) not specific
23. 23.🔎 Strong or weak evidence: a fact from our science textbook? (a) weak evidence (b) strong evidence
24. 24.True or false: “It is good for many reasons.” — this is weak because it is not specific (no who, what or how many). (a) True (b) False
25. 25.🔎 What makes evidence strong? (a) loud and long (b) funny and short (c) old and vague (d) relevant and reliable
26. 26.🔎 Strong or weak evidence: a rumour forwarded in a chat group? (a) weak evidence (b) strong evidence
27. 27.True or false: the school library’s record of books borrowed is weak evidence. (a) False (b) True
28. 28.True or false: In a debate on reading: “Trains run on tracks.” — this is weak because it is not specific (no who, what or how many). (a) True (b) False
29. 29.🔎 Which source is most reliable in a debate on saving water? (a) a chat forward (b) an unsigned poster (c) a guess (d) the city water board
30. 30.True or false: “Studies show things.” — this is weak because it is not relevant to the topic. (a) True (b) False
31. 31.True or false: one friend’s guess is weak evidence. (a) True (b) False
32. 32.True or false: “Lots of people think so.” is strong evidence. (a) False (b) True
33. 33.True or false: “Lots of students like it.” — this is weak because it is not specific (no who, what or how many). (a) True (b) False
34. 34.🔎 Strong or weak evidence: measured results from our class experiment? (a) weak evidence (b) strong evidence
35. 35.True or false: “My neighbour heard it from someone.” — this is weak because it is not relevant to the topic. (a) True (b) False
36. 36.🔎 Strong or weak evidence: a survey of 300 students in our school? (a) strong evidence (b) weak evidence
37. 37.🔎 Strong or weak evidence: the school nurse’s record of sick days? (a) weak evidence (b) strong evidence
38. 38.True or false: “It is good for many reasons.” — this is weak because it is not relevant to the topic. (a) False (b) True
39. 39.🔎 Strong or weak evidence: the attendance register for the whole year? (a) weak evidence (b) strong evidence
40. 40.🔎 A fact about cricket in a debate on school uniforms is… (a) very strong (b) very specific (c) not relevant

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