Selecting and Analyzing Evidence for the Rhetorical Analysis Essay

Overview

Evidence and commentary are worth up to 4 of the 6 points on the AP Lang rhetorical analysis essay, making them the most heavily weighted part of your score. On the exam, FRQ 2 gives you a nonfiction passage of roughly 600 to 800 words and asks you to analyze the writer's rhetorical choices, with a recommended 40 minutes to write. Most students can spot rhetorical choices. The points come from explaining how those choices work and why the writer made them, which is exactly what this guide teaches.

This is a deep dive on one skill. For the full essay format, prompt wording, and overall game plan, start with the FRQ 2 rhetorical analysis hub guide, then come back here to build the skill that carries the most rubric weight.

How Evidence and Commentary Are Scored on the AP Lang Rubric

The rhetorical analysis rubric has three rows, and Row B (Evidence and Commentary) is worth four times as much as the thesis. Here's the full 6-point breakdown:

The key word in Row B is "commentary." Quoting the passage is not analysis. Evidence proves the choice exists; commentary proves you understand what it does. In plain terms, here's what separates the Row B levels:

• Low scores come from general evidence with little explanation, or summary instead of analysis.
• Middle scores come from specific evidence with some explanation of how it works.
• The top of the range comes from consistently well-chosen evidence with commentary that explains how the writer's choices contribute to their purpose, again and again, across the whole essay.

A useful gut check as you write: for every quote, your explanation should be longer than the quote itself. If your body paragraphs are mostly the writer's words instead of yours, you're summarizing, not analyzing.

What Counts as Evidence and What Counts as Commentary

Evidence is anything specific you pull from the passage; commentary is your explanation of how that evidence achieves the writer's purpose. Keep the two jobs separate in your head:

Notice that "naming a device" appears nowhere in the commentary column. Device names are labels, not analysis. "Jobs uses anaphora" earns nothing by itself. "Jobs repeats this sentence opener to build momentum toward his final claim, so the audience feels the conclusion arriving before he states it" earns points.

How to Select Strong Evidence

Pick evidence that lets you say something about purpose, not just evidence that's easy to label. During your reading of the passage, hunt in three places:

Look for patterns

Repeated words or phrases, similar types of examples, consistent tone choices, and structural parallels are gold. Patterns are deliberate. If a writer returns to the same image three times, that's a choice you can analyze, and analyzing a pattern usually produces stronger commentary than analyzing a single word.

Find significant moments

Mark key transitions, powerful images, striking word choices, and any shift in tone or approach. Shifts are especially valuable because they force you to ask "why here?" and that question leads straight to purpose-driven commentary.

Tie everything to the rhetorical situation

Before you commit to a piece of evidence, ask whether you can connect it to the audience and purpose named in the prompt. The prompt's background line (who's speaking, to whom, when, and why) is a free analytical tool. A commencement speaker, a senator, and a memoirist make different choices for different audiences, and Row B rewards commentary that shows you understand that.

Quality beats quantity. You don't need ten quotes. Three or four well-chosen pieces of evidence per body paragraph, each followed by real commentary, will outscore a quote dump every time.

Building Commentary in Three Layers

Strong commentary moves through three levels: name the choice, explain how it works, and connect it to purpose. Most students stop after level one. The points live in levels two and three.

1. Identify the choice. Name the specific technique, quote the precise words, or describe the pattern. This is the floor, not the ceiling.
2. Explain how it works. Analyze the mechanism. What effect does this choice create in the reader's mind? Show cause and effect.
3. Connect to purpose. Link the effect back to the writer's goal and the audience's likely response. This is the move that pushes Row B toward 3 and 4 points.

A simple sentence frame for drafting (drop the training wheels once it's natural): "By [choice], [writer] [effect on audience], which [advances purpose]." It's formulaic, but it forces you through all three layers.

Worked Example: Four Levels of Commentary

Here's how the same piece of evidence scores differently depending on the commentary attached to it. The passage is from Steve Jobs' 2005 Stanford commencement address (a practice example, not an official exam prompt):

Weak (summary plus a vague claim):

This names a choice but the commentary could describe any speech ever given. "Helps him connect" explains nothing.

Developing (specific evidence, some explanation):

Better. The evidence is precise and the commentary gestures at an effect, but it doesn't yet explain why accessibility matters for Jobs' purpose.

Skilled (evidence plus how plus why):

Now the commentary explains the mechanism (informality signals honesty) and connects it to the rhetorical situation (a dropout speaking at a graduation).

Sophisticated (multiple choices working together):

This is what consistent 4-point commentary looks like: it tracks how choices interact, and it ties the combination back to a precise statement of purpose. Stack enough commentary at this level and you're also in the conversation for the sophistication point, which the demonstrating sophistication guide covers in depth.

Common Mistakes

• Listing devices without analyzing them. "Jobs uses pathos, ethos, and logos" earns nothing on its own. Fix it by explaining how a specific appeal works in a specific moment and why Jobs deploys it there.
• Summarizing instead of analyzing. "Jobs tells the audience about his adoption" describes content, not choices. Fix it by analyzing how he tells the story (casual diction, narrative framing, self-deprecating humor) and why that framing serves his message.
• Writing generic commentary. "This helps the audience understand his point" fits every passage ever written, which means it analyzes none of them. Fix it by naming the specific effect on this specific audience.
• Quote-dumping. Stringing four quotes together with one sentence of explanation caps your Row B score. Fix it by following every piece of evidence with at least two sentences of your own analysis before moving on.
• Ignoring the rhetorical situation. Commentary that never mentions the audience or occasion reads as device-spotting. Fix it by using the prompt's background information; the speaker, audience, and occasion are handed to you for a reason.
• Treating commentary as a one-time move. Row B rewards consistency. One brilliant analytical paragraph followed by two summary paragraphs won't hold a 4. Fix it by applying the three-layer structure in every body paragraph.

Practice and Next Steps

The fastest way to build this skill is repetition with feedback. Write body paragraphs from real prompts in the FRQ question bank, then run full essays through FRQ practice with instant scoring to see whether your commentary is actually landing Row B points. Working through past exam questions under the 40-minute clock teaches you how much evidence you can realistically analyze well in one sitting.

If your thesis needs work before your evidence can support it, revisit crafting an effective thesis. When your commentary is consistently hitting all three layers, the next step is writing the complete rhetorical analysis essay, where you'll put thesis, evidence, and commentary together under exam conditions.