Probability & Errors (OCR A-Level Psychology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the usual level of significance in psychology?
What is the usual level of significance in psychology?
0.05 (or 5%)
In the notation p<0.05, what does 'p' stand for?
In the notation p<0.05, what does 'p' stand for?
Probability
What is a critical value?
What is a critical value?
Cut-off point to accept/reject null hyp.
What is the result of a statistical test called?
What is the result of a statistical test called?
Calculated or observed value
How do you check for statistical significance?
How do you check for statistical significance?
Compare calculated value with critical
When is a one-tailed test used?
When is a one-tailed test used?
When the hypothesis is directional
When is a two-tailed test used?
When is a two-tailed test used?
When the hypothesis is non-directional
What info is needed to use a table of critical values?
What info is needed to use a table of critical values?
Test type, N/df, significance level
What is a Type I error?
What is a Type I error?
Rejecting null hyp. when it's true
What is another name for a Type I error?
What is another name for a Type I error?
False positive
What is a Type II error?
What is a Type II error?
Accepting null hyp. when alt. is true
What is another name for a Type II error?
What is another name for a Type II error?
False negative