Answer:
All of these terms are ideas which follow psychological occurances in the real world.
Social facilitation is the factor between the company of other people, and how it mentally benefits the performance of someone else.
For example, when someone is preforming on stage, the social facilitation of the audience will influence them psychologically and will result in a better performance.
Social loafing can be thought of as the trend of lower effort when working in a group, rather than on your own.
For instance, when you are working with your colleagues in a job, social loafing comes into action when you put in less work with the expectation that with more people, others will do their part for you, resulting in less productivity.
Deindividuation happens when someones identity with other people takes over their own identity and awareness of themselves.
This includes actions that you wouldn't take out of this group or community because it can distract you from thinking critically.
Deindividuation in the real world can take the form of events such as protests, riots, mobs, parties and several others, typically involving a crowd or group.
Groupthink culture or groupthink is when individuals are pressured to think the same way by discouraging different ideas or opinions. This can be thought of as individual decision making in a group.
Groupthink can apply to the military as a result of their very strict rules. In the military, people are forced to act without question, and are put through harsh situations in order to prepare them for the seriousness of battle.
The military itself is positive groupthink as it achieves quicker decision making, harmony, less stress, and no arguments to slow them down.
There is also a negative part of groupthink where people will not be open to information that may be better or help improve the situation.
Cultural norms can be refered to as the cultural or social expectations people live by in society.
For instance, Americans are expected to wake up, and attend school or work during the day.
Cultural norms also include morals such as what is acceptable, and what is not.
