A health psychologist investigated whether sedentary adults who completed a 45-minute resistance training session three times a week for eight weeks would show lower salivary cortisol concentrations (measured in nmol/L) after a public speaking stress test, compared to a control group who engaged in no structured physical activity.
Write a directional alternative hypothesis for this investigation.
6 exam-style questions on OCR A Level Psychology Exercise and mental health (Biological). Each one has a worked solution and a mark scheme showing where the marks go.