Many workplaces regulate office temperatures to improve employee productivity. However, environmental psychologists debate whether cooler or warmer working environments optimize cognitive performance. A researcher decides to investigate this by conducting a laboratory experiment. They want to compare the spatial reasoning performance of participants who complete a set of geometric 3D puzzles in a cold room (maintained at 15∘C15^\circ\text{C}15∘C) with those who complete the identical puzzles in a warm room (maintained at 25∘C25^\circ\text{C}25∘C).
Write a two-tailed alternative hypothesis for this study.
201 exam-style questions on OCR A Level Psychology Planning and conducting research. Each one has a worked solution and a mark scheme showing where the marks go.