Literary argumentation at the advanced level requires a thesis that does more than identify a topic. A defensible thesis expresses an interpretation that requires defense through evidence and a line of reasoning. It may preview the logical development of the argument without simply listing devices or evidence. A line of reasoning is the logical sequence of claims that work together to support the thesis; it is communicated through commentary that explains the relationship between evidence and claim. Evidence is chosen strategically to illustrate, clarify, exemplify, associate, amplify, or qualify a point. Evidence is sufficient when its quantity and quality provide apt support for the line of reasoning. More sophisticated arguments may address alternative interpretations, discuss the broader significance of the reading, or use analogies to clarify the interpretation. Attribution of words and ideas from the text is required; on timed exam essays, a formal citation style like MLA is not required, but the source of quoted or paraphrased material must be clear.
- Defensible thesis: An interpretive claim about a literary text that requires defense through evidence and a line of reasoning, not just a statement of fact.
- Line of reasoning: The logical sequence of claims that connect evidence to the thesis and move the argument forward.
- Commentary: The writer's explanation of the logical relationship between a piece of evidence and the claim it supports.
- Evidence sufficiency: Evidence is sufficient when its quantity and quality together provide apt support for the line of reasoning.
- Alternative interpretation: Acknowledging another defensible reading of the text and explaining why your interpretation holds despite it.
Draft a thesis for a poem you have read. Then ask: does this claim require defense? Does it preview a logical sequence of ideas? Can you identify at least two pieces of evidence that support different steps in that sequence?
| Essay element | What it does | Common weakness to avoid |
|---|
| Thesis | States a defensible interpretive claim | Restating the prompt or listing devices without a claim |
| Line of reasoning | Sequences claims logically toward the thesis | Jumping between unconnected observations |
| Commentary | Explains the evidence-to-claim relationship | Quoting without explaining what the quote does |
| Evidence | Illustrates, clarifies, amplifies, or qualifies a claim | Using evidence that is technically relevant but not apt |