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Debate Worksheet: Strong and Weak Evidence

Debate lesson 3: Strong and weak evidence · Set 100 · 40 questions
TalentJR

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.

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

Answer key

  1. not relevant
  2. check where it came from
  3. strong evidence
  4. strong evidence
  5. False
  6. the city water board
  7. strong evidence
  8. strong evidence
  9. not reliable
  10. False
  11. strong evidence
  12. not relevant
  13. not relevant
  14. weak evidence
  15. True
  16. not relevant
  17. weak evidence
  18. not specific
  19. relevant and reliable
  20. True
  21. weak evidence
  22. not reliable
  23. not reliable
  24. True
  25. True
  26. False
  27. False
  28. True
  29. not reliable
  30. False
  31. not specific
  32. not relevant
  33. True
  34. weak evidence
  35. strong evidence
  36. False
  37. weak evidence
  38. False
  39. True
  40. strong evidence

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