Question detail
What is the purpose of calculating mean values in reaction time investigations?
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. To find the fastest reaction time
- B. To summarize the data and reduce the impact of anomalies
- C. To compare with other studies
- D. To determine the range of reaction times
Answer
The correct option is To summarize the data and reduce the impact of anomalies. This answer is correct because it matches the approved learning objective to carry out Required Practical 7 by planning and performing an investigation into the effect of a factor on human reaction time in the subtopic Structure and function.
Explanation
The correct option is To summarize the data and reduce the impact of anomalies. To summarize the data and reduce the impact of anomalies is correct because it directly supports the approved learning objective to carry out Required Practical 7 by planning and performing an investigation into the effect of a factor on human reaction time. This belongs to the subtopic Structure and function within The human nervous system, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Structure and function.
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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