Control groups and matched pair tests (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
How do control groups help in experiments?
How do control groups help in experiments?
Compare treatments to no treatment
Why is random selection important in control groups?
Why is random selection important in control groups?
Reduces bias in sample
What characterizes matched pair tests?
What characterizes matched pair tests?
Pair similar individuals
Which is a key advantage of matched pair tests?
Which is a key advantage of matched pair tests?
Excellent control of variables
In the gardener's experiment, what is a key extraneous variable?
In the gardener's experiment, what is a key extraneous variable?
Location of rose bushes
What is the main goal of using control groups and matched pair tests?
What is the main goal of using control groups and matched pair tests?
Ensure differences are due to treatment
When might matched pair tests be preferred over control groups?
When might matched pair tests be preferred over control groups?
When individual differences matter
What is a key benefit of control groups?
What is a key benefit of control groups?
Provides baseline to measure effects
Which characteristic is essential for pairing in matched pair tests?
Which characteristic is essential for pairing in matched pair tests?
Similar key traits
Why might matched pair tests limit the size of a study?
Why might matched pair tests limit the size of a study?
Matching difficulty reduces sample