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Data Collection and Ethics

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Data Collection and Ethics

Read each question carefully. For questions that ask you to design your own investigation, include each element listed in the question; other well-designed responses are possible.

Planning a Data Collection

1.A researcher at a school wants to find out whether Year 11 students at that school prefer learning online or attending classes in person. Which population best matches this question?

All students at the school
Year 11 students at the school
All teachers at the school
All Year 11 students in New Zealand

2.For the investigation about Year 11 students’ preferred learning format, name the main variable to record for each student.

3.Assuming students are selected in a similar, unbiased way, which sample size would usually give the most reliable estimate of Year 11 students’ learning-format preferences?

12 students
55 students
160 students

4.A class plans to survey students about study habits. Select every appropriate ethical step to take before collecting responses.

Seek informed consent from participants.
Tell participants what the information will be used for.
Send identifiable responses to other schools.
Protect the confidentiality of individual responses.

Data Quality and Ethics

5.One researcher asks, “What is your height in centimetres?” Another asks, “How tall are you?” Explain one reason their responses might not be directly comparable.

6.In a data project in Aotearoa New Zealand, treating data as taonga means it should be:

shared freely with anyone who asks
handled with respect, care, and appropriate protection
owned only by the researchers who collected it
left unprotected once collection is complete

7.A published study of screen time surveyed 500 students from Auckland schools in 2023. State two limitations of using this dataset to describe screen time for all teenagers in New Zealand.

8.Explain why increasing the sample size can make a survey estimate more reliable. Include one qualification to your explanation.

Design an Investigation

9.Create a brief plan for an investigation about students at a school. Include an investigative question, the population and a suitable sample, the variable or variables to collect, a collection method, and one ethical consideration.