Types of errors

HideShow resource information
Preview of Types of errors

First 145 words of the document:

Research methods revision
Types of errors
Type 1 errors: is when we say there is a significant difference or correlation when
there actually isn't. This means we have accepted the alternative hypothesis
incorrectly. Therefore we have also rejected the null hypothesis incorrectly.
Type 2 errors: is when we say there isn't a significant difference or correlation
when actually there is. This means we have rejected the alternative hypothesis
incorrectly. Therefore we have also accepted the null hypothesis incorrectly.
Minimising errors
Type 1 errors can be minimised by decreasing the probability to 0.01 although
this can increase type 2 errors.
Type 2 errors can be minimised by increasing the probability to 0.1 although this
can increase type 2 errors.
Usually P=0.05 is used as a probability level as it is a compromise between type 1
and 2 errors.

Comments

No comments have yet been made

Similar Psychology resources:

See all Psychology resources »See all resources »