← VCE Data Analytics U3O2

Research question feature: clarity

A research question feature: it is specific, uses unambiguous key terms and asks about one thing only, so everyone reads it the same way.

Part of: VCE Data Analytics - U3O2 - Analysis and Design — Module 4

Understanding Research question feature: clarity in VCE Data Analytics U3O2

What it does: The vague word 'often' is replaced by a measurable unit (days per week), which makes the question clear. Each question focuses on one thing. A combined question would be unclear about which part to answer. Words such as 'bad' and 'young people' are not defined, so different readers will interpret the question differently. A clear question replaces them with specific terms. Clarity means unambiguous wording, so everyone reads the question the same way. Multiple readings signal vague or ambiguous terms. A clear question tells you what data is needed and who to collect it from. It does not control or predict the results.

Common mistakes: The key term 'sleep' is defined vaguely. 'Enough rest' means different things to different people and can't be measured. It should be defined clearly, for example 'Sleep = hours asleep per night'. This question asks about two things, spending and favourite food. A clear research question asks about one thing only. It should be 'Mean weekly canteen spend?'.

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This module's key terms are also in a printable crossword (Modules 3–31) and word search (Modules 3–146).

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Learning
Duo
Which research question is clearer?
Do students like the canteen?How many Year 11 students at Lakeview College use the school canteen at least twice a week?
Matches
"Do students use social media a lot and does it harm their sleep?"
↓
Asks two things at once (social media use and the effect on sleep), so it is not clear what to investigate
Applying
Meanings
Term
Clarity
Meaning
A research question feature: it is specific, uses unambiguous key terms and asks about one thing only, so everyone reads it the same way.
Practice
Vague: Is social media bad for teens?
Testing
Gaps
A clear question is , not vague.
Check Answer
Spots
3Q: Mean weeknight sleep hours?
4Sleep = getting enough rest

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Quick Questions

1. Which research question is clearer?
A. How many Year 11 students at Lakeview College use the school canteen at least twice a week? ✓
B. Do students like the canteen?
The clear question names who (Year 11 students at Lakeview College), what is measured (canteen use) and how often (twice a week). 'Like' and 'students' are vague.
2. A question asks: 'Is social media bad for young people?' What is the main clarity problem?
A. It uses too many numbers
B. Vague wording: 'bad' and 'young people' can be read in many ways ✓
Words such as 'bad' and 'young people' are not defined, so different readers will interpret the question differently. A clear question replaces them with specific terms.
3. Which step makes the term 'active' clearer in a research question?
A. Defining it, e.g. 'at least 30 minutes of exercise per day' ✓
B. Repeating it several times in the question
Defining a key term with a measurable meaning means everyone reads it the same way. Repeating a vague word does not make it clearer.
4. Which research question asks about one thing only?
A. What is the average number of hours Year 12 students sleep and how much do they spend on homework?
B. What is the average number of hours Year 12 students sleep on a school night? ✓
The second question asks about two things (sleep and homework). A clear research question focuses on one thing; the second part should be its own question.
5. A research question is 'How do students travel to school and why do they choose that way?' How should it be fixed for clarity?
A. Split it into two separate questions ✓
B. Add more detail to make it longer
The question asks about two things: the method of travel and the reasons. Splitting them gives two clear questions, each about one thing.

Match the Pairs

"How do students feel about school?" → Unclear: 'feel' and 'school' are vague, so different people would read the question differently
"What percentage of Year 11 students at our school use the library at least once a week?" → Clear: it is specific, uses defined terms and asks about one thing
Defining a key term removes ambiguity, so 'often' is replaced by a set number → "How many days per week do Year 10 students play video games?"
A clear research question asks about one thing only, so a double question must be split → Q1: "How many hours do students sleep on school nights?" Q2: "What is the average Maths mark of students?"
"Do students use social media a lot and does it harm their sleep?" → Asks two things at once (social media use and the effect on sleep), so it is not clear what to investigate
"Are young people happy with local transport?" → Vague terms: 'young people', 'happy' and 'local transport' are not defined, so they can be read in different ways

Key Term

Clarity
A research question feature: it is specific, uses unambiguous key terms and asks about one thing only, so everyone reads it the same way.

Fill in the Blanks

1. A clear question is specific, not vague.
Hint: Type the word for precise and detailed, the opposite of vague.
2. Key terms must be unambiguous to readers.
Hint: Type the word meaning only one possible interpretation.
3. A clear question asks about one thing only.
Hint: Type the number of topics a clear research question should cover.
4. Defining a key term removes ambiguity.
Hint: Type the noun for wording that could be read in more than one way.
5. Fix: split 'A and B' into two questions.
Hint: Type the number of separate questions a double-barrelled question should become.

Spot the Error

Question 1
A Topic: Student sleep
B Group: Year 11 students
C Q: Mean weeknight sleep hours?
D Sleep = getting enough rest
Line D — The key term 'sleep' is defined vaguely. 'Enough rest' means different things to different people and can't be measured. It should be defined clearly, for example 'Sleep = hours asleep per night'.
Question 2
A Topic: School canteen
B Group: Year 9 students
C Measure: weekly spend in $
D Q: Mean spend and best food?
Line D — This question asks about two things, spending and favourite food. A clear research question asks about one thing only. It should be 'Mean weekly canteen spend?'.
Question 3
A Topic: Phones in class
B Q: Is phone use a big problem?
C Phone use = minutes on phone
D Group: Year 10 students
Line B — 'Big problem' is vague wording that people will read differently, so the question can't be answered clearly. It should be specific, for example 'Mean phone mins per lesson?'.
Question 4
A Topic: Teen exercise
B Q: Mean active days per week?
C Active = being active
D Group: Year 12 students
Line C — This definition is circular. It uses the word 'active' to define 'active', so it doesn't make the key term unambiguous. It should give a clear standard such as '30+ mins of exercise'.
Question 5
A Q: Is screen time bad?
B Group: Year 8 students
C Screen time = hours on devices
D Measure: survey, daily hours
Line A — 'Bad' is vague and a matter of opinion, so readers will interpret the question differently. A clear question names exactly what is measured, for example 'Mean weekly screen hours?'.

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