field survey
Current situation investigation is a comprehensive and special investigation and study on the current situation, characteristics and laws of the respondents.
Development survey
Development survey is to study the characteristics and laws of an object changing with time according to a certain purpose. It can also be divided into two forms: one is vertical development research. The purpose is to study the characteristics and laws of the respondents in different time stages. The second is horizontal development research. The purpose is to study the characteristics and laws of the respondents in different spatial ranges at the same time.
Interview investigation
Interview survey is a survey method to understand someone, something, a certain behavior or attitude by talking as the main way.
questionnaire survey
Questionnaire survey is a research method to collect data by asking questions in writing, that is, investigators prepare forms for survey items, distribute or mail them to relevant personnel, ask for answers, and then collect, sort out, count and study them.
Medical record investigation
Case investigation refers to selecting only one unit and one person in the target population, and making a comprehensive investigation and analysis of the relevant educational contents, that is, understanding the general situation of the whole population by dissecting sparrows.
Random surprise inspection
Sampling survey refers to an investigation method that takes some selected target people as samples and infers the overall situation from the sample situation.