Question detail
Which of the following is a key component to consider when designing an investigation into reaction time?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
The human nervous system
Question
- A. The color of the stimulus
- B. Control variables
- C. The time of day
- D. The age of participants
Answer
Control variables
Explanation
Control variables are essential in any scientific investigation to ensure that the results are valid and that the effect of the factor being tested can be accurately measured.
Common mistake
Ignoring Control Variables
Students often forget to identify and control variables that could affect the outcome of their reaction time investigation.
Ensure to list all control variables and explain how they will be kept constant throughout the experiment.
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