Environmental psychologists investigate how physical classroom environments influence cognitive performance in students. While previous research has focused on artificial lighting and temperature, a researcher wants to investigate whether the presence of indoor green plants in a study room affects high-school students' sustained attention span compared to working in a sterile room without plants. The study will be conducted in a local secondary school with 750 students on the register.
Explain how you would conduct a study using the laboratory experimental method to investigate whether the presence of indoor green plants affects a high-school student's sustained attention span. Justify your decisions as part of your explanation.
You must refer to:
You should use your own experience of practical activities to inform your response.
