How does the use of numbers, statistics, graphs, and other quantitative instruments affect perceptions of the validity of knowledge claims in the human sciences?

... How does the use of numbers, statistics, graphs, and other quantitative instruments affect perceptions of the validity of knowledge claims in the human sciences? During the last centuries people saw that experiments helped answer many questions about nature. Scientists were able to prove pattern and theories related to nature. Experiments became an essential factor for science because science is based on facts and in order to prove these facts to be true scientists know that by having experiments they are able to prove their theories and patterns of nature. Since humans are part of nature also, experiments can be done on us to show certain patterns of behaviours or maybe theories about our behaviour or about human nature. These studies on the human race are divided into many categories mainly called human sciences. These studies are called sciences because the use of numbers in collecting data and analysing them are essential

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