Article in English: According to the scientific method, your theory must be testable. Develop a way to test whether each hypothesis holds true. Be sure to perform your test in a controlled environment: try to isolate the event and your proposed cause (the dependent and independent variable) from anything that might complicate the results. Be precise, and look out for external factors.  Make sure that your experiments are repeatable. In most cases, it is not enough to simply prove a hypothesis once. Your peers should be able to recreate your experiment themselves and get the same results. Have peers or advisers review your testing procedure. Ask someone to look over your work and confirm that your logic is sound. If you are working with partners, make sure that everyone gives their input. Depending on your field of study, it may be hard to run complex experiments without access to certain equipment and resources. Scientific gear can be expensive and tricky to procure. If you are enrolled in a university, speak with any professors and researchers who might be able to help. If you aren't in school, consider reaching out to professors or graduate students at a local university. For instance, contact the physics department if you want to explore a theory of physics. If you find a far-away university that is doing a lot of exciting research in your field, consider emailing them to ask about their research, their results, or their advice for your project. Again, experiments must be reproducible: other people must be able to set up a test in the same way that you did and get the same result. Keep accurate records of everything you do in your test. Be sure to keep all your data. If you're in academia, there are archives which store the raw data gathered in the process of scientific research. If other scientists need to find out about your experiment, they can consult these archives or ask you for your data. Make sure that you can provide all the details. Compare your predictions against each other and against the outcomes of your...

Summary in Indonesian:
Rancang eksperimen. Cari dukungan. Buat catatan akurat. Evaluasi hasilnya. Tetapkan kepastian.