Required Practical 7: Define the term ‘Reflex Action’: 4 Bullet point how you would use this apparatus: 6 List the variables you would need to control: 6 Required Practical 7: The effect of a factor on human reaction time What are the ethical implications of this experiment?: 8 Factors that can effect reaction time include: 6 5 5 Risk Assessment: Measuring reaction time using a computer Describe how you would do this: What are the benefits of using a computer? Flow chart the order of a reflex action: Stimulus  Hazard Risk Precaution How can you calculate the reaction time in seconds? 7 9