Multi-Source Reasoning (MSR) presents 2–3 tabs of information — emails, memos, charts, tables, or a mix — and asks you to synthesize information across all sources. This tests your ability to integrate, compare, and draw conclusions from multiple information sources simultaneously.

A) The Format

• 2–3 clickable tabs, each containing different information (often different perspectives on the same scenario).
• Each MSR set has 3 questions: typically a mix of standard multiple-choice and dichotomous (Yes/No or True/False) questions.
• Dichotomous questions present 3–7 statements; for each, you select Yes/No or True/False independently.
• Important: once you move to the next screen on the GMAT, you cannot return to the previous one. Note all relevant information before submitting.

B) Reading Strategy

1. Read all tabs before answering any questions — ~30–45 seconds per tab.
2. As you read, note what each tab contributes and whether tabs contradict or reinforce each other.
3. Build a quick mental map: "Tab 1 = constraint definition, Tab 2 = data table, Tab 3 = manager's recommendation."
4. For each question, identify which tab(s) contain the relevant information before reading answer choices.
5. Read the question first: know what you are looking for before diving into the tabs.
6. Answer using only the information given: do not bring in outside knowledge. If the data doesn't say it, you cannot assume it.

C) Information Synthesis

MSR questions frequently require combining information from multiple tabs. Classic pattern:

• Tab 1 defines a rule or constraint.
• Tab 2 provides data.
• Tab 3 makes a recommendation or conclusion.
• Question: does the data in Tab 2 support the recommendation in Tab 3, given the constraint in Tab 1?

D) Dichotomous (Yes/No) Questions

• Each statement is independent — answer each on its own merits.
• Only select "Yes" or "True" if the information across the tabs definitively supports it.
• "Could be true" is not sufficient — require explicit support from the source material.
• Watch for statements that mix information from multiple tabs — verify each piece separately before combining.

E) Common Traps

• Tab attribution confusion: information is present in one tab but the question attributes it to another. Always go back to the source — do not rely on memory.
• Intentional contradictions: tabs may describe different time periods, scenarios, or perspectives. The question tests whether you apply the correct context.
• Partial information: a question seems answerable from one tab alone, but a second tab adds a constraint that changes the answer.
• Scope creep: bringing in general knowledge or outside reasoning. All answers must be grounded in the tab content.

F) MSR Tab Types

MSR tabs can contain many different formats. Be prepared to read and cross-reference any of these:

• Written passages: emails, memos, reports, or narratives. Extract the key claims, constraints, and recommendations.
• Tables: cross-reference table values against claims made in written tabs. Read column headers and units before reading cell values.
• Charts and graphs: apply all the same chart-reading principles (axis scale, units, truncated baseline) as you would for Graphics Interpretation.
• Flowcharts: trace paths carefully rather than holding the whole flowchart in memory. Follow decision nodes step by step until reaching a terminal node.

G) What MSR Tests

MSR questions test all five DI skills — Apply, Evaluate, Infer, Recognize, and Strategize — across multiple information sources. The most distinctive MSR skill is Recognize: identifying whether information from one tab agrees with, contradicts, or is independent of information from another tab.