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INVESTIGATION 2 OF 6

Choose sources for the claims they can support

Evaluate provenance, purpose, method and relevance rather than assigning a source a single blanket credibility score.

Why learn this? A useful source for one question may be weak evidence for another.

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Quick recap: Source evaluation asks who created a record, how, when, for what purpose and with what access to the facts. Corroboration requires sufficiently independent evidence, not repeated copies of one claim.

Lesson activities

Choose either at any time. Your drafts stay with you.

1. Try — read before judging

Original fictional source packet. These are source descriptions and excerpts, not live websites. Use their labels as locators.

  1. SOURCE A — volunteer intake log, event 1: 24 objects; 10 working at departure; 8 awaiting parts; 6 not repaired. Volunteers classified outcomes at closing; no follow-up.
  2. SOURCE B — organizer newsletter: “Our repair café rescued 24 items!” It cites the intake log and aims to recruit volunteers.
  3. SOURCE C — participant comment: “My lamp worked when I left, but it stopped again two days later.” One invited response; the packet gives no response rate.
  4. SOURCE D — repost: “24 items rescued,” copied from the organizer newsletter without independent observation.

Go directly to the workbench

2. Predict — make a provisional choice

0 / 16,000 characters · length is a storage limit, not a quality score

3. Experiment — test your reading

  1. Create cards for A, B and C. Record creator, collection method or purpose, exact wording, relevance and a specific limitation.
  2. In the draft, draw a text dependency map showing A → B → D. Explain why B and D are not two independent confirmations.
  3. Write a source-selection memo: identify the best source for departure status, one useful challenge and a claim requiring new evidence.

Your source dossier

Keep source wording, your paraphrase and your reasoning in separate fields. Locators are stored as plain text; the site does not fetch or verify them. Label fictional teaching sources as fictional.

0 / 16,000 characters · length is a storage limit, not a quality score
0 / 16,000 characters · length is a storage limit, not a quality score

Comparison draft

Save your first version here before revising. It will remain unchanged while you edit the working draft.

0 / 16,000 characters · length is a storage limit, not a quality score

4. Understand — connect choice and effect

Evaluate a source in relation to a claim

The intake log is useful for recorded departure status, assuming its categories were applied as described. It is not a direct record of later disposal. The organizer’s newsletter reveals how the event presents itself, but its rescue claim exceeds the cited log. The participant’s comment supplies one later experience, not a failure rate.

Ask who created the source, what access they had, how the information was collected and what purpose shaped its presentation. Do not reduce these questions to a label such as “biased, therefore useless.” An interested participant may know something firsthand. The task is to identify that knowledge and its limits.

Trace dependencies before counting corroboration. If the newsletter uses the log and the repost copies the newsletter, all three claims may rest on one record. Draw arrows from origin to reuse. Repetition increases visibility; it does not create independent observation.

Then test relevance. A source can be accurate yet fail to answer your question. A list of arrivals cannot establish repairs, and an account of one failed lamp cannot establish how all repairs performed. Missing response information also matters: you do not know who was invited, who replied or whose experience remains absent.

In the selection memo, assign sources roles rather than medals. Use the log to describe its measured outcome, the comment to raise a durability question and the newsletter to analyze an overclaim. Identify where a new source would change the evidence rather than simply repeat it.

Corroboration
Support from additional evidence whose relationship to the original claim has been examined.
Source dependence
A relationship in which apparently separate accounts derive from the same underlying information.
Worked example — a possible revision, not the only answer

Before

Three sources say 24 items were rescued, so the claim is confirmed.

After

The newsletter and repost trace back to the same intake log, which counts arrivals rather than avoided disposal. The participant comment challenges durability in one case but cannot establish a failure rate.

Source count is not independent corroboration. An interested organizer can supply valuable records, but the record must support the particular claim.

Return to your workbench and reconsider a choice

5. Apply — make something and try a new case

Your main artifact

Make three cards and a 200-word selection memo. Explain one reason to use and one reason to limit each source.

Keep your artifact in the working draft above. Suggested lengths help you plan; they do not measure quality.

Unfamiliar passage

Three news posts repeat one press release announcing a new scholarship. A university page lists eligibility rules; a student describes difficulty with the application.
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0 saved attempt(s).

6. Continue — record work without claiming mastery

Completion means you worked through this investigation. Your interpretation and writing still need judgment using the project rubric; no automatic proficiency score is awarded.

Continue: Preserve meaning when you borrow words or ideas

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