Evaluating Arguments & Evidence — Practice · Grade 8 English

Chapter: Argument & Rhetoric

What this practice covers

By the end of Evaluating Arguments & Evidence you should be able to:

11 questions, multiple choice and written answer, each with a worked explanation.

Vocabulary used: claim, evidence, sufficient evidence, irrelevant evidence.

Problem 1

A 'claim' in an argumentative text is best described as...
  1. the main position the writer wants the reader to believe
  2. a fact that cannot be debated
  3. a piece of supporting evidence
  4. the conclusion's final sentence only
Answer and explanation

the main position the writer wants the reader to believe

The claim is the central, debatable position the whole argument is built to support.

Problem 2

Which piece of evidence in the lunch-period passage is IRRELEVANT to the claim?
  1. The comment about the falcon mascot being a fast eater
  2. The studies linking short lunches to rushed eating
  3. The point about needing time to decompress
  4. The claim that lunch should be forty-five minutes
Answer and explanation

The comment about the falcon mascot being a fast eater

The mascot comment doesn't logically support whether extending lunch is good policy — it's true but irrelevant.

Problem 3

Explain why a claim usually needs more than one piece of evidence to be convincing.
Answer and explanation

A single piece of evidence might be an exception, too small a sample, or a coincidence. Multiple pieces of relevant evidence make it far more likely the claim reflects a real, general pattern.

Problem 4

Evidence that is true but doesn't logically connect to the claim is called...
  1. irrelevant evidence
  2. a counterclaim
  3. an objective summary
  4. a central idea
Answer and explanation

irrelevant evidence

Irrelevant evidence may be factual, but it fails to actually support the claim being argued.

Problem 5

A writer claims 'video games improve memory' and supports it with a single small study of ten people. This evidence is most likely...
  1. insufficient, because the sample is too small to support such a broad claim
  2. sufficient and highly relevant
  3. an example of a compare/contrast structure
  4. an example of an objective summary
Answer and explanation

insufficient, because the sample is too small to support such a broad claim

A study of only ten people is too small a sample to reasonably support a broad, general claim about memory.

Problem 6

Identify the reasoning gap and improve the conclusion. Give a detail and explain its relevance.
Answer and explanation

The sequence shows association, not established causation. Absence may change with season or illness. A qualified conclusion would report the change and call for comparison with other factors.

Use the criteria to compare your reasoning, not to copy the model’s wording. A supported alternative interpretation may earn full credit.

Response criteria

  • Make an accurate, focused claim or revision.
  • Use a relevant detail or a clearly explained language choice.
  • Explain the relationship and recognize a relevant limit.

Problem 7

A learner writes: “The author is wrong because I prefer shorter hours.” Explain the problem and produce a better response.
Answer and explanation

A preference does not test the evidence. Evaluate who was surveyed, how the count was collected, and whether the conclusion exceeds the finding.

Use the criteria to compare your reasoning, not to copy the model’s wording. A supported alternative interpretation may earn full credit.

Response criteria

  • Make an accurate, focused claim or revision.
  • Use a relevant detail or a clearly explained language choice.
  • Explain the relationship and recognize a relevant limit.

Problem 8

Compare what you must inspect in these two cases. What can transfer, and what must be checked again?
Answer and explanation

Separate a claim, reasons, evidence, and the assumption connecting them. A count can support a narrow observation without establishing a broad conclusion. The method transfers, but the particular detail, scope, and context must be read again. The sequence shows association, not established causation. Absence may change with season or illness. A qualified conclusion would report the change and call for comparison with other factors.

Use the criteria to compare your reasoning, not to copy the model’s wording. A supported alternative interpretation may earn full credit.

Response criteria

  • Make an accurate, focused claim or revision.
  • Use a relevant detail or a clearly explained language choice.
  • Explain the relationship and recognize a relevant limit.

Problem 9

Using an assigned reading or one exercise source, write a developed response applying evaluating arguments & evidence. Aim for 120–180 words; name the reading or reproduce the sentence you revise.
Answer and explanation

The count supports demand among most responding club members. It cannot represent all students without broader sampling. A survey including nonusers and a staffed pilot could test general demand. A complete response supplies context, a focused claim, a brief supporting detail, explanation, and a relevant qualification. Do not simply repeat this model.

Use the criteria to compare your reasoning, not to copy the model’s wording. A supported alternative interpretation may earn full credit.

Response criteria

  • Make an accurate, focused claim or revision.
  • Use a relevant detail or a clearly explained language choice.
  • Explain the relationship and recognize a relevant limit.

Problem 10

Write two specific feedback comments on a response to this unit: one on accuracy or meaning and one on evidence or language. Then state a revision priority.
Answer and explanation

Check whether the response explains separate a claim, reasons, evidence, and the assumption connecting them. a count can support a narrow observation without establishing a broad conclusion. Ask for a relevant detail and the reason it supports the conclusion. Prioritize the mistaken assumption shown here: “The author is wrong because I prefer shorter hours.”

Use the criteria to compare your reasoning, not to copy the model’s wording. A supported alternative interpretation may earn full credit.

Response criteria

  • Make an accurate, focused claim or revision.
  • Use a relevant detail or a clearly explained language choice.
  • Explain the relationship and recognize a relevant limit.

Problem 11

Choose a fresh sentence or detail from the assigned selection. Explain how this unit’s method applies, and identify one uncertainty or limitation.
Answer and explanation

The sources agree that access matters but differ on how to estimate demand and fund supervision. The survey suggests interest among respondents; the restricted materials grant cannot pay wages. A funded attendance trial addresses the uncertainty. The response must supply its own precise detail and explain it; copying the model without fresh evidence is insufficient.

Use the criteria to compare your reasoning, not to copy the model’s wording. A supported alternative interpretation may earn full credit.

Response criteria

  • Make an accurate, focused claim or revision.
  • Use a relevant detail or a clearly explained language choice.
  • Explain the relationship and recognize a relevant limit.

Browse all courses