# What difference do you find in Type I and Type II errors?

** ****What difference do you find in Type I and Type II errors?**

**we do** not reject the null hypothesis when in fact there is a **difference** between the groups **we** make what is known as a **type II error** . The **type II error** rate is often denoted as . The power of a study is defined as 1 – and is the probability of rejecting the null hypothesis when it is false.