Data Collection Planning

Name:

Date:

Students planning data collection with charts and graphs

📊 Part 1: Variables and Populations

1. For the investigative question "How does screen time affect sleep hours among Year 11 students?", which variables are most relevant?

Daily screen time (hours)

Sleep duration (hours)

Student's favourite colour

Type of device used

Student's height

2. What is the population of interest for the question above?

All students in New Zealand

All Year 11 students

Students at our school only

Adults who use screens

3. Which sample size would be most appropriate for investigating Year 11 students' sleep patterns across New Zealand?

5 students

50 students

500 students from different schools

5000 students

4. A variable that can be measured in numbers (like height in centimetres) is called:

Categorical variable

Quantitative variable

Population variable

Sample variable

🎯 Part 2: Planning Your Investigation

5. Choose an investigative question that interests you and write it below:

6. For your chosen question, identify TWO relevant variables and explain why they are important:

Variable 1: ________________________

Why it's important:

Variable 2: ________________________

Why it's important:

7. How would you collect data for your investigation? Describe your method:

8. What is your population of interest, and what would be an appropriate sample size?

Population: ________________________

Sample size: ________________________

Justify your sample size choice:

⚖️ Part 3: Ethical Considerations

9. List TWO ethical questions you should consider when collecting data for your investigation:

Ethical question 1:

Ethical question 2:

10. Why is it important to get informed consent when collecting data from people?

11. Extension: What potential biases might affect your data collection method, and how could you minimise them?

Data Collection Planning

Data Collection Planning

📊 Part 1: Variables and Populations

🎯 Part 2: Planning Your Investigation

⚖️ Part 3: Ethical Considerations

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