Controlling extraneous variables (Edexcel GCSE Statistics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
In the memory test with building work, which is extraneous?
In the memory test with building work, which is extraneous?
Noise from the building work
In the sleep medication study, what's the explanatory variable?
In the sleep medication study, what's the explanatory variable?
The new sleep medication
Best control for noise distractions during tests?
Best control for noise distractions during tests?
Use noise-cancelling headphones
Testing catalyst type effect on yield; which is extraneous?
Testing catalyst type effect on yield; which is extraneous?
Room temperature
How to control lighting differences between participants?
How to control lighting differences between participants?
Provide identical, adequate lighting
Participants feel uneasy in unfamiliar lab; best control?
Participants feel uneasy in unfamiliar lab; best control?
Let participants do experiment at home
After giving headphones in memory test, which extraneous may remain?
After giving headphones in memory test, which extraneous may remain?
How tired the students are
What is the main goal of controlling extraneous variables?
What is the main goal of controlling extraneous variables?
Make results show true variable relationship
Practical control for temperature fluctuations in a lab?
Practical control for temperature fluctuations in a lab?
Use a thermostat for consistent temp
Day1 test quiet, Day2 with building noise. Best control to reduce noise?
Day1 test quiet, Day2 with building noise. Best control to reduce noise?
Provide noise-cancelling headphones