An environmental psychologist wants to investigate the impact of office lighting colour temperature on task performance. They design an experiment comparing the effects of warm-toned lighting (3000 K) versus cool-toned lighting (6500 K) on the typing speed of administrative assistants, measured as words per minute during a 5-minute typing test.
Write an alternative, two-tailed 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.