Week four Flashcards
What was Popper’s contribution to testing theories?
Popper believed that theories need to be falsifiable.
What was Imre Lakatos’ contribution to testing theories?
Lakatos thought that Popper’s theory of falisfiability was too broad.
What is a core tenant of a good theory?
That it can predict outcomes.
What is power?
The probability of rejecting the null, if the alternative is true.
How is power calculated?
What influences power?
When reporting p-values, always need to include confidence intervals.
Why?
How are confidence intervals calculated and what do they tell us?
What is effect size?
What is the difference between dependent and unit-free effect sizes?
When interpreting effect sizes, it is important to not just use Cohen’s interpretation, for example. What is more important is to interpret it in relation to what you are studying? Is there a practical impact?
