Type 1 and Type 2 Errors

Question 1

What is a Type 1 error?

Answer 1

Researcher wrongly concludes that there us a significant difference between the IV and DV - incorrectly concludes the results are significant when they are the (a false positive)

Question 2

What is a Type 2 error?

Answer 2

Researcher wrongly concludes that there is not a significant difference between the IV and DV - incorrectly concludes the results are not significant when they are (a false negative)

Question 3

What value do psychologists use?

Answer 3

P=0.05 as it strikes a good balance between the risk of making a Type 1 or 2 error

Question 4

When does a Type 1 error occur?

Answer 4

When the researcher chooses a P value which is too large - not strict enough