Here is a mind map about the quantitative data collection techniques and data-gathering instruments. There are 6 steps that should include in the quantitative data collection method, like observation, survey, content analysis, physiological test, experiment. Using the sense of organs to gather facts or opinions to conduct the observation. As for the content analysis, makes you search for several oral or written forms of communication to find the answers to your research questions. Learn more details from this mind map and hope it will help you.