According to Lowe, knowledge requires some form of action to be accurate and precise. In other words, knowledge is created based on a rational design such as an experiment. Experiments are a great example of how action is necessary to produce or reproduce knowledge. Furthermore, it requires research and rational design to achieve certainty in one's knowledge claims. Usually this certainty can be obtained through experiment. Natural science can be considered a science of the physical world, while social science can be defined as a branch of science dealing with society and human relationships. In addition, social sciences and natural sciences are distinguished by the method of their creation. In general, the natural sciences require some form of action (i.e., an experiment) to justify their knowledge claims, whereas the social sciences do not require action to justify their knowledge claims. of knowledge. An example of a method that requires no action can be a case study. It is questionable which method is the most reliable and accurate. A knowledge question that arises from this situation is: to what extent is action necessary to justify knowledge. In this essay I will examine the extent to which action is necessary to justify a knowledge claim. Taking into account both natural and social sciences. Taking into account personal experiences and relevant knowledge questions, this essay will address several aspects of the knowledge question. In natural sciences, it is generally necessary to act in the form of experiments to justify knowledge. Experiments typically include a targeted procedure and quantitative results. Additionally, they always have maximum control and show cause and effect...... middle of paper ......y, I advocate methods such as experiments that require action to achieve results. Experiments achieve maximum control and show a clear relationship between two variables. Although they lack ecological validity, experiments are generally more accurate and precise. For me, maximum control is more important for ecological validity. Experiments use rationally designed designs or theories to justify knowledge claims or create knowledge. Precision and accuracy are necessary to substantiate knowledge claims. In conclusion, evaluating both data collection methods, it is evident that experiments are more reliable and accurate in obtaining or substantiating knowledge. Experiments use some form of action, whereas case studies do not. Although case studies are more ecologically valid, maximum control and cause and effect are more important for accurate and precise knowledge..