Decision Analysis has been removed from the real UKCAT exam since 2016. This means that Decision Analysis will NOT be in your official UKCAT exam.
Other older resources that you may be using will be out of date and will have the wrong information/question types.
Since Medify closely mirrors the real UKCAT exam format, the mocks and questions you see in our question-bank will be similar ones that you will see in your real exam.
The replacement section, Decision Making for 2018 (for 2019 entry) WILL be used for application purposes.