Human Sciences

Language 

Language is an important and powerful tool. The language or wording used in polls can have impact on the conclusions drawn from such polls as it can affect the answers that one gets to the questions that are asked. There are several examples of polls in which different question wording can cause different answers. An example of this is that in one set of polls, it was found that the wording of possible answer choices affected the approval ratings for President Obama. People were given the choice of either 'approving' or 'disapproving' his performance. The ratings were much better than when people were given the choice of 'approving strongly', 'approving somewhat', 'disapproving somewhat' or 'disapproving strongly'.

Reason 

There is indeed a logic behind scientific discovery. In order to start an investigation you need a hypothesis (reason) and once you evaluate it, you use reason to justify your founding. Once it is tested multiple times, it will become clear that the explanation was logical. 

Perception 

It is common that when we expect something to happen, our observations are influenced. This even happens during our every day life. For example, if someone goes out to a part or to a concert and expect it to be good, but turns out to be bad, the person tends to focus on the positives. However, in the end it is common that we realise the negatives of the situation. This does depend on whether you are optimistic or pessimistic. Overall, expectations can influence our observations depending on the mindset of the person. There is also something called "schema", and those have a tendency to remain unchanged. 

History 

I do believe that human scientists should know about the history of their subjects. In this way, they will be able to study and understand a specific subject in much more depth and they will be aware of what is known already, which will avoid them of repeating the same thing. 

Emotion 

Human sciences do not necessarily tell us a lot about emotions. This is because human sciences include many subheadings where each of them focuses on a different aspect of humans. Emotions are a complex thing, which almost always depends on the person. As stated in the James-Lange theory, "emotions occur as a result of physiological reactions to events".

Mathematics

In my opinion, it becomes hard to reduce studies of human behaviour to mathematics. Everyone is different and thus you cannot present behaviour with a formula. It can always be estimated, but it is not the same. Math tends to revolve around accurate answers and human behaviour is always different. It will never be fully accurate when compared to a mathematical description. 

Religion

Each religion has different beliefs that can influence different scientists. In some countries, it is morally not expected to complete certain experiments. If this is the case, the scientist is limited to his understanding of a subject. The topic also relates to conformity, which means that humans tend to act upon social influence. They act and think like the people in a group they are part of.

Ethics 

Scientists have ethical principles. They should not cause any harm to the environment or people. If a scientists is observing animals or even humans, we should remember it is not to cause harm. In human sciences, it is extremely importants to be ethical.