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NotesDesign Technology HLTopic 5.1Applying research methods
Back to Design Technology HL Topics
5.1.25 min read

Applying research methods (Design Technology HL)

IB Design Technology • Unit 5

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Contents

  • The five methods, and the blind spot of each
  • Demographics: defining the population you are studying
  • From raw data to a finding
  • Exam-style question
The big idea: The guide names five methods for this statement: field research, user observation, interviews, questionnaires and focus groups.

Knowing what each one GIVES you is half the knowledge. Knowing what each one cannot see is the half that decides which two you run.

Five methods, each with the data it returns and the blind spot it has. The last step is the one that turns records into a need.

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MethodWhat you getWhat it cannot see
Field researchThe environment, the constraints, the workaroundsWhy any of it happens
User observationHesitations, errors, features never touchedWhat the user was thinking
InterviewsReasons, history, feelings, prioritiesWhat the user actually did, as opposed to meant to do
QuestionnairesNumbers: how many, how often, how stronglyAnything you did not think to ask about
Focus groupsDisagreement, priorities, the users' own wordsThe quiet member's real opinion

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A method is only as good as the people you run it on. Demographics are the measurable facts that define a target population — age, gender, income, education, occupation, location, household type, and any relevant ability or condition.

Using demographics properly

1

Define the population BEFORE you recruit

"Adults aged 65-85 living alone, who prepare their own meals" tells you who to approach and, just as usefully, who to turn away.

2

Record them for every participant

Without them you cannot say whether your twelve users represent the population or twelve people who happened to be in the shop on a Tuesday.

3

Use them to spot a gap

If every respondent is under 30 and the product is for pensioners, the data is not weak — it is about the wrong people, and no amount of analysis fixes that.

4

Never mistake them for the person

Demographics say who is IN the group. They do not say what any member wants. Two 70-year-old women with the same income can want opposite things.

Convenience is not a sample: Your class, your family and your friends are the easiest people to research and almost never the target population.

If you have to use them, say so and say what it costs: the findings describe them, not the users you are designing for.

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"Analyse the data" does not mean report it. Marks are earned by moving up four rungs: what you recorded, the theme that repeats, the statement about the user, and the want or need that follows from it.

Reporting — few marks

  • "Most people said the kettle was heavy."
  • "60% answered yes to question 4."
  • "One user said they burnt themselves once."
  • True, but nothing in the design has to change

Analysing — full marks

  • 9 of 12 users set the kettle down to open the lid
  • → filling needs two hands at the heaviest moment
  • → users with weak grip cannot hold a full kettle one-handed
  • → needs to be fillable without being lifted at all
Qualitative and quantitative, together: Questionnaires give you how many. Interviews and focus groups give you why.

A finding that carries both is much harder to argue with: "41 of 60 stopped using it within a month, and in the focus group every one of them named the same reason — the lid smells after a week."

How this is tested — applying research methods to a target population and analysing what comes back. It comes up two ways:

Paper 1 — multiple choice

  • Match a method to the data it returns.
  • Identify the blind spot of a stated method.

Paper 2 — analysing a product

  • Apply two methods to a named product's users and justify each.
  • Explain how demographic data shapes who you recruit.
The trap: Treating a list of quotations as analysis. Raw data is not a finding — group it, state what it says about the USER, and only then state the want or need. Answers that stop at "users said it was heavy" stop at one mark.
IB-style questionApply[6 marks]

A team is designing a shopping trolley for users with limited mobility. Apply two research methods to this population and explain what each would contribute.

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IB Exam Questions on Applying research methods

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How Applying research methods Appears in IB Exams

Examiners use specific command terms when asking about this topic. Here's what to expect:

Define

Give the precise meaning of key terms related to Applying research methods.

AO1
Describe

Give a detailed account of processes or features in Applying research methods.

AO2
Explain

Give reasons WHY — cause and effect within Applying research methods.

AO3
Evaluate

Weigh strengths AND limitations of approaches in Applying research methods.

AO3
Discuss

Present arguments FOR and AGAINST with a balanced conclusion.

AO3

See the full IB Command Terms guide →

Related Design Technology HL Topics

Continue learning with these related topics from the same unit:

5.1.1Planning a UCD inquiry
5.1.3Building a persona
5.1.4Usability objectives
5.1.5Task analysis
View all Design Technology HL topics

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