Welcome to Comparing and Contrasting Sources!

In your Individuals and Societies (I&S) journey, you will often feel like a detective. Detectives don't just listen to one witness; they talk to many people to find out the truth. In this chapter, we are learning how to look at two or more sources side-by-side to see where they agree and where they disagree. This is a vital part of Criterion D: Thinking Critically.

What Does "Compare and Contrast" Actually Mean?

When you see the command term "Compare and Contrast" in an IB assessment, it is asking you to do two specific things:

  • Compare: Find the similarities. What do the sources have in common?
  • Contrast: Find the differences. Where do the sources disagree or provide different information?

Analogy: Imagine two friends describing a movie. One says it was "an amazing action film with great stunts." The other says it was "an exciting thriller with a fast-paced plot." They compare because they both think it was exciting/amazing. They contrast because one calls it "action" while the other calls it a "thriller."

Why Do We Do This?

By comparing and contrasting, you can:

  • Check if information is reliable (if three sources say the same thing, it’s more likely to be true).
  • Identify different perspectives (one person might see a historical event as a "victory," while another sees it as a "disaster").
  • Understand the fuller picture of a topic, which helps you build stronger arguments (Synthesis).

Cross-reference: While we are looking at similarities and differences here, remember that you also need to think about the Origin and Purpose of each source to understand why those differences exist. (See the chapter on Analysing sources: origin and purpose for more details).

Step-by-Step: How to Compare and Contrast Sources

Step 1: Identify the Main Message

Read or look at both sources carefully. Ask yourself: "What is the one main thing this creator wants me to know?"

Step 2: Find the "Common Ground" (Compare)

Look for facts, opinions, or even "vibes" (tones) that both sources share. Helpful sentence starters:
- "Both Source A and Source B agree that..."
- "Similarly, Source B suggests..."
- "Source A supports the idea in Source B by..."

Step 3: Spot the "Point of Departure" (Contrast)

Look for things that are in one source but missing in the other, or where the two sources flat-out disagree. Helpful sentence starters:
- "On the other hand, Source B emphasizes..."
- "Source A focuses on the economic impact, whereas Source B focuses on the social impact."
- "While Source A uses a positive tone, Source B is much more critical."

Step 4: Connect to Usefulness

In your MYP eAssessment, you might be asked to compare how useful two sources are for a specific research topic.
- Example: "Source A is useful for understanding the dates of the event, but Source B is more useful for understanding how the people felt."

Quick Review: The Comparison Checklist

When looking at two sources, try to compare their:
1. Content: What facts or data do they give?
2. Perspective: What is their point of view?
3. Tone: Is the language angry, professional, excited, or neutral?
4. Emphasis: What do they spend the most time talking about?

Common Mistakes to Avoid

  • Only doing one half: Don't just list similarities. If the question says "compare and contrast," you must include differences too!
  • Describing instead of comparing: Don't just write a paragraph about Source A and then a separate paragraph about Source B. You need to link them together. Use words like "however," "similarly," and "conversely."
  • Thinking "Contrast" means "Bad": Just because two sources are different doesn't mean one is wrong. They might just be looking at the same problem from different angles.

Did You Know?

In the MYP on-screen examination, your Thinking Critically task (Task 3) often gives you multiple sources (labeled Source A, Source B, etc.). You aren't expected to have memorized these sources beforehand! The skill is being able to look at them for the first time and spot the connections between them right there on the screen.

Key Takeaway

Comparing and contrasting is about finding the "bridge" (similarities) and the "gap" (differences) between sources. Mastering this helps you interpret different perspectives and their implications, which is exactly what Criterion D is all about!

Memory Aid: The "Venn Diagram" Trick

If you are stuck, imagine a Venn Diagram in your head.
- The middle section where the circles overlap is your Comparison.
- The outer sections that don't touch are your Contrast.
If you can find at least two things for the middle and two things for the sides, you are on your way to an excellent (level 7–8) response!