All people who want to drive have to be shown responsible for what they do while driving, they need to proven to be careful and drive safely... what answers are you looking for?
The answer is #1 Prohibited Alcohol and #4 Prohibited cannabis and hashish.
Islam is opposed to the use of any drugs except for those which are medically prescribed. According to their Prophet Muhammad - Every intoxicant is Khamr (alcohol) and all Khamr is Haram (unlawful or not permitted). They see alcohol and psychoactive drugs as satanic devices used to sway people away from the word of Allah (God). In Islam followers are allowed to smoke tobacco but do not accept the use of opium unless it is in the form or medically prescribed morphine.
At the level of 0.05% significance we can not reject the psychologist's claim. His claim is supported.
Explanation:
When a researcher undertakes a project to do research firstly he takes some random samples. Sample is definite a small group of numbers assume to represent the whole population. Suppose a researcher wants to do research on married couples to find the trend of divorce among them. For that reason he will randomly choose some of the couples and will draw conclusions that inter personal communication reduce the chances of divorce.
Now to establish this experiment as a fact he needs to go through a test of level of significance. Where he will get the result that his statement is established or rejected.