What is a Population Sampling?

Population sampling survey refers to a kind of non-comprehensive survey based on a certain research purpose, randomly selecting a part of the population from the population under study as a sample, and inferring the corresponding indicators of the entire population based on the data obtained from the survey. The population sampling survey has the following characteristics: (1) the surveyed unit (sample) is selected from the population according to the random principle; (2) the sampling survey will generate sampling errors, which can be calculated and controlled in advance; (3) The purpose of sampling survey is to use the sample index to infer the overall index, and when making such an inference, the mathematical statistical method is used. Therefore, it is a more complete and scientific demographic survey method than other non-comprehensive surveys. ^[1]

Demographic survey

Right!

Population sampling survey refers to a kind of non-comprehensive survey based on a certain research purpose, randomly selecting a part of the population from the population under study as a sample, and inferring the corresponding indicators of the entire population based on the data obtained from the survey. The population sampling survey has the following characteristics: (1) the surveyed unit (sample) is selected from the population according to the random principle; (2) the sampling survey will generate sampling errors, which can be calculated and controlled in advance; (3) The purpose of sampling survey is to use the sample index to infer the overall index, and when making such an inference, the mathematical statistical method is used. Therefore, it is a more complete and scientific demographic survey method than other non-comprehensive surveys. ^[1]

Depending on how the population sample is organized, there are simple

It can save manpower, financial resources and shorten the survey time. At the same time, due to the small number of sampling units, survey errors can be reduced, and even more accurate information can be obtained than a comprehensive survey. Therefore, it has been widely adopted by China's statistics department, various related units and population research institutions.

Mainly: used for special population surveys, such as women's fertility sample survey, elderly population sample survey, etc .; used for regular population sample surveys, such as

A nationwide regular population sample survey conducted since the 1980s. Based on the 1982 census, the National Bureau of Statistics has conducted an annual survey since 1982, forming a survey system. The purpose of the survey is to accurately and timely grasp the annual population changes, and to check the state

Name, relationship with head of household, household registration status, gender, age, ethnicity, marital status, household status on January 1, household status on December 31, birth, death, immigration, immigration, childbearing women The total number and total number of surviving children, as well as 15 items such as the number of births in that year. The focus is on investigating changes in birth rates, mortality, natural growth rates, and total population. According to national needs, individual important items are also added or adjusted in the survey every year.

From November 1, 2014 to November 10, the city's 6,000 investigators began to conduct household sample surveys in Beijing in 2014, involving 1,940 survey communities.

This time, 3% of the residents in the city will be selected for surveys, which is larger than the previous 2% sample size, which is also significantly higher than the one-thousandth sample of the National Bureau of Statistics sample survey. On the basis of the content of regular surveys, the sample survey also added indicators such as employment, residence, unit type, industry type, and work status. Why conduct a population sample survey? According to reports, through population sampling surveys, you can learn about the population, structure, distribution, and migration of the city, and provide decision support for services such as labor employment, education and medical care, and social security. China conducts a census every 10 years, and a simple census between the two censuses. In other ordinary years, a population sample survey is conducted every year to grasp the latest situation of population changes.

This population sample survey involved 300 streets and towns in the city, 999 community neighborhood (village) committees, and 1940 survey communities. From October 20th to 31st, starting the mapping work before registration, the head of households can know the age, migration, education and other information of each member of the family in advance during the mapping period in order to report to the investigator during the registration of the survey. From November 1st to 10th, registration of the questionnaire will be conducted. The population sampling surveyor will conduct household surveys, and hope that the residents of the selected plots will actively cooperate. The relevant person in charge of the Municipal Statistics Bureau said that citizens do not have to worry about their private information being leaked. According to the "Statistics Law" of China, statistical agencies and statisticians shall keep state secrets, business secrets and personal information known in the statistical work confidential. No unit or individual may provide or disclose the information obtained in a statistical survey that can identify or infer the identity of a single statistical survey object, and may not be used for purposes other than statistics. ^[2]