Tests of Correlation: Spearman's & Pearson's (AQA A-Level Psychology): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which type of data is Spearman's rho specifically designed for?
Which type of data is Spearman's rho specifically designed for?
Ordinal data
At what level must both variables be measured to use Pearson's r?
At what level must both variables be measured to use Pearson's r?
Interval or ratio level
What type of statistical test is Spearman's rho?
What type of statistical test is Spearman's rho?
Non-parametric
What type of statistical test is Pearson's r?
What type of statistical test is Pearson's r?
Parametric
What does Spearman's rho do to raw scores before calculating correlation?
What does Spearman's rho do to raw scores before calculating correlation?
Converts them into ranks
What type of relationship does Spearman's rho look for?
What type of relationship does Spearman's rho look for?
Monotonic relationships
What type of relationship does Pearson's r specifically measure?
What type of relationship does Pearson's r specifically measure?
Linear relationships
Why is Spearman's rho less sensitive to extreme values than Pearson's r?
Why is Spearman's rho less sensitive to extreme values than Pearson's r?
It converts data to ranks
What is the range of possible values for both correlation coefficients?
What is the range of possible values for both correlation coefficients?
-1 to +1
When is a correlation result considered statistically significant?
When is a correlation result considered statistically significant?
When it equals or exceeds critical value