5.5 Evaluating Arguments & Literary Devices

What Descriptor C5 Actually Tests

The fifth analysis skill is the most demanding: evaluate arguments or use of literary devices. The HiSET splits this descriptor into two tracks because it spans both content categories:

• Informational track: evaluate an argument's claim, reasons, evidence, and assumptions; recognize weak evidence, logical fallacies, and irrelevant support.
• Literary track: recognize literary devices such as foreshadowing, flashback, and irony, and explain how each contributes to meaning.

This is a DOK 3-4 task because it asks you to judge the quality of an argument or the function of a device, not just to locate it.

Evaluating an Argument — The Parts

An argument has four parts. To evaluate the argument, judge each:

A C5 question may ask which of the following weakens an argument, what evidence would strengthen it, whether a piece of evidence is relevant, or whether the reasoning is sound. The answer almost always lives in one of the four parts above.

Three Questions That Evaluate an Argument

When you face an argument-evaluation question, run these three questions:

1. Sufficiency: Is there enough evidence to support the claim, or is the author generalizing from one example?
2. Relevance: Does the evidence actually address the claim, or does it address a different claim?
3. Credibility: Is the evidence from a source the reader should trust, and is it current?

If an argument fails any one of the three, it is weak. A C5 answer that says "the evidence is insufficient because it draws on only one example" is stronger than one that says "the author is wrong."

Common Logical Fallacies on the HiSET

You do not need to name fallacies by their formal labels, but you do need to recognize the patterns:

• Ad hominem: attacking the person, not the argument. "The council member's plan should be rejected because she just moved here."
• Appeal to fear: substituting a threat for evidence. "If we don't pass this measure, the town will collapse."
• Hasty generalization: drawing a broad conclusion from a small sample. "Two cyclists ran stop signs last week; cyclists clearly ignore traffic laws."
• False cause (post hoc): assuming that because B followed A, A caused B. "It rained the day after the dance; the dance must have caused the rain."
• Either-or (false dilemma): presenting only two options when more exist. "We must either cut the library budget or raise taxes."

A C5 question often shows you a passage that commits one of these and asks what is wrong with the reasoning. The answer names the pattern, not the label.

A Worked Argument-Evaluation Question

Read the short editorial below, written in the style of a HiSET informational text.

The new bike-share program should be expanded to the east side immediately. Last month, two riders told the local paper they loved using it. Expansion is the only way to reduce traffic congestion, so the council has no real choice.

Question: Which statement best describes the weakness of the argument?

• A. The claim is unclear because the author never defines "expansion."
• B. The evidence is insufficient because two anecdotal reports do not support a district-wide expansion, and the either-or framing ignores other ways to reduce congestion.
• C. The reasoning is weak because the author does not name the council members.
• D. The argument is invalid because bike-share programs never reduce traffic.

Option B is correct. Two anecdotes are not enough evidence to justify expansion (sufficiency failure), and the claim that expansion is the only way to reduce congestion is a false dilemma (either-or fallacy). Option A is wrong: "expansion" is clear enough in context. Option C names a detail that does not affect the argument's strength. Option D responds with an unsupported counterclaim of its own — it is itself the kind of assertion the question is testing, not an evaluation of the argument.

Literary Devices — A Table

For literary text, C5 asks you to recognize devices and explain what they accomplish. The HiSET descriptor names three directly: foreshadowing, flashback, and irony. Add imagery as a fourth common device.

The three ironies are the most-tested distinction. Memorize the short version:

• Verbal = a speaker says one thing and means another (sarcasm is the most common example).
• Situational = the result is the opposite of what was expected.
• Dramatic = the reader knows more than the character.

A Worked Literary-Device Question

Read the short literary passage below, written in the style of a HiSET narrative excerpt.

On the morning of the championship, Maya's coach handed her the old wooden racket she had used since she was eleven. "You'll want this one," he said. She did not understand why until the final set, when the new racket she had switched to that season cracked against a serve and the strings snapped. She looked at the bench, where the old racket lay waiting in its case.

Question: Which literary device does the passage most clearly use, and what is its main effect?

• A. Flashback, because the passage shows Maya at age eleven.
• B. Foreshadowing, because the coach's early hint prepares the reader for the later failure of the new racket.
• C. Dramatic irony, because the reader knows the new racket will fail.
• D. Imagery, because the case is described in detail.

Option B is correct. The coach's line ("You'll want this one") and the presence of the old racket in its case are hints placed early that prepare the reader for the snapped strings later. That is foreshadowing, and its main effect is suspense and preparedness. Option A is wrong: "since she was eleven" is a brief reference, not a flashback that interrupts the chronology. Option C is tempting but wrong: dramatic irony requires the reader to know something the character does not. Here, the reader does not know the new racket will fail until it does; only the coach seems to suspect it. Option D overstates the descriptive detail — the case is mentioned, not described.

A Worked Irony Question

For an irony example, consider this short passage.

The town had spent four years and a great deal of money building a flood-control channel to protect the new courthouse. On the day the courthouse opened, the channel overflowed from a storm the engineers had said would occur only once a century, and the courthouse's basement filled with three feet of water.

Question: Which type of irony does the passage best illustrate, and why?

• A. Verbal irony, because the engineers said the opposite of what they meant.
• B. Situational irony, because the protective structure caused the very flooding it was built to prevent at the moment it was supposed to be celebrated.
• C. Dramatic irony, because the reader knew the channel would fail.
• D. No irony, because the event was simply an accident.

Option B is correct. The outcome — a flood-control channel that fails to prevent flooding on the very day it is supposed to protect the courthouse — is the opposite of what was expected. That is situational irony. Option A is wrong: the engineers may have been wrong, but they were not saying the opposite of what they meant. Option C is wrong: the reader learns of the failure at the same time as the town; there is no knowledge gap. Option D is wrong: the situation is structured as a reversal of expectation, which is the definition of situational irony, not mere accident.

Devices Are Not Decoration

The key C5 principle: a literary device always does something. Foreshadowing builds suspense. Flashback deepens motive. Irony reveals a gap. Imagery establishes mood. A C5 question that asks "what does the device contribute to the passage" wants an answer that names the effect on meaning, not just the name of the device. "The foreshadowing builds suspense" is a complete answer; "the passage uses foreshadowing" is not.

A Checklist for C5 Questions

• For an argument: did I identify claim, reasons, evidence, and assumptions?
• Did I run the three evaluation questions (sufficiency, relevance, credibility)?
• Did I name the fallacy pattern, not just reject the conclusion?
• For a literary device: did I name the device correctly (verbal vs. situational vs. dramatic irony; foreshadowing vs. flashback)?
• Did I say what the device contributes to meaning, not just that it is present?
• Did I reject answers that respond to the argument with an unsupported counterclaim?

If you can tick all six, you are answering the question the way descriptor C5 intends. The CCRS link is RH.9-10.8 for argument evaluation and RL.11-12.5 for literary devices, both of which the HiSET C5 descriptor mirrors.