Researchers wished to study the effects of scaffolding on learning. They surveyed a stratified sample of 100 18-year-old students from four different schools. Some schools had a large number of students and others had a smaller number of students. The students were asked questions about how they learn, different teaching and classroom activities, and what helps them learn.
Explain how the researchers could have obtained a stratified sample from the four different schools.
4 marksAt the end of the survey, the researchers wished to treat the students ethically. They used the following statement in their debriefing:
‘Thank you for taking part in the survey. Your data will be very useful. Have you any questions?’
Suggest two additional points that could be added to the debriefing statement to better ensure ethical treatment of the students.
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