Collecting data (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
What is the main purpose of a controlled experiment?
What is the main purpose of a controlled experiment?
To understand cause and effect
In an experiment, what is the independent variable?
In an experiment, what is the independent variable?
The factor you change
Why should extraneous variables be controlled?
Why should extraneous variables be controlled?
To ensure reliable results
What is an example of a response variable in a sleep study?
What is an example of a response variable in a sleep study?
Patient's sleep difficulty
Which is a disadvantage of controlled experiments?
Which is a disadvantage of controlled experiments?
Artificial conditions
What benefit does a controlled environment provide?
What benefit does a controlled environment provide?
Focus on specific factors
In an experiment on sunlight and plant colour, what is the controlled variable?
In an experiment on sunlight and plant colour, what is the controlled variable?
Type of plant
How does a controlled experiment support scientific research?
How does a controlled experiment support scientific research?
Ensures data consistency
What is a common mistake in experimental design?
What is a common mistake in experimental design?
Ignoring extraneous variables
Why is repeatability important in experiments?
Why is repeatability important in experiments?
To confirm results