Dr. Vane is investigating whether the ambient temperature of a room affects the reading comprehension scores of students. He plans to have one group of students read a passage in a room heated to 28∘C28^\circ\text{C}28∘C and another group read the same passage in a room kept at 20∘C20^\circ\text{C}20∘C.
Explain the terms 'independent variable' and 'dependent variable' using Dr. Vane's research as an example.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.