Probability & Significance (AQA A-Level Psychology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
On what scale is probability measured in statistical testing?
On what scale is probability measured in statistical testing?
0 to 1
What is the standard significance level used in psychology?
What is the standard significance level used in psychology?
0.05 (5%)
What is a Type I error also known as?
What is a Type I error also known as?
False positive
What is a Type II error?
What is a Type II error?
Accepting a false null hypothesis
What does the null hypothesis always state?
What does the null hypothesis always state?
There is no difference
What is the function of a critical value?
What is the function of a critical value?
To separate acceptance/rejection of H₀
When should a one-tailed test be used?
When should a one-tailed test be used?
With a directional hypothesis
When might researchers use a 0.01 significance level?
When might researchers use a 0.01 significance level?
In studies with potential human costs
Which significance level increases Type I error risk?
Which significance level increases Type I error risk?
0.10 (10%)
What does statistical testing deal with?
What does statistical testing deal with?
Probabilities not certainties