Research Methodology

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Topic 3.1 of Data Collection and Analysis Methods

Primary and Secondary Data

The difference between data you collect yourself and data someone else collected first, and why a secondary dataset's original labels deserve scrutiny before you trust them for a new question.

~15 min total·4 quadrants of structured content

By the end of this topic, you will

Distinguish primary data from secondary data with a security research example
List where security research data typically comes from, primary and secondary
Explain why a reused dataset's original labelling scheme needs to be checked before trusting it for a new study

Quadrant 1 · e-Tutorial

Video lectures and walkthroughs

2 video lessons 1 EZ Byte 13:56 total

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EZ Bytes · quick recaps

Primary vs Secondary Data | The Research Choice That Changes Everything

51s

Video lessons

Quadrant 2 · e-Content

Articles and case studies

Primary and Secondary Data

Running a phishing simulation and recording who clicks is primary data. A CERT's published incident record is secondary data the moment someone else picks it up. The difference decides how much you can trust what you reuse.

Quadrant 3 · Web Resources

Downloadable material and curated external links

Downloadable reference material

EBook

Research Methodology — eBook

v1.0

Open resource

Cheatsheet

Research Methodology — Cheatsheet

v1.0

Open resource

Question Bank

Research Methodology — Question Bank

v1.0

Open resource

MCQ Bank

Research Methodology — MCQ Bank

v1.0

Open resource

Quadrant 4 · Self-Assessment

Test your knowledge, earn a certificate on first pass

Data Collection and Analysis Methods

Twenty questions on primary vs secondary data, instrument validity and reliability, sampling techniques, hypothesis testing, scales of measurement, and statistical test selection.

20 questions30 minPass: 60%

Research Methodology: Complete Assessment

Comprehensive 100-question assessment covering all five chapters of the Research Methodology eBook 2026.

100 questions120 minPass: 60%

Quadrant 5 · Play

Lock it in with a game

Ungraded practice for Primary and Secondary Data: games and hands-on Skill Labs that use this topic, plus the crossword for Data Collection and Analysis Methods. It never affects your unit assessment, and clearing a game or lab for the first time earns EZ Board points when you are signed in.

Lab

The Penguin Paradox: Real Data, Real Statistics

15 tasks from this unit. Free to play. Earn 30 EZ Board points on your first clear.

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Crossword

Data Collection and Analysis Methods

10 key terms from this unit. Free to play.

Play Leaderboard

Race

Data Drive

6 checkpoints from this unit. Free to play. Earn 30 EZ Board points on your first clear.

Play

Discussion · 0 comments

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This is the discussion thread for the lesson "Primary and Secondary Data" (Research Methodology, Unit 3). Ask questions, share real-world examples, and help classmates who are stuck. Conversation starters. Try explaining one of these in your own words: - Distinguish primary data from secondary data with a security research example - List where security research data typically comes from, primary and secondary - Explain why a reused dataset's original labelling scheme needs to be checked before trusting it for a new study

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Check each objective once you feel confident about it.