Table of Contents

## What are Survey Sampling Methods?

There are three types of sampling methods: probability sampling, non-probability sampling, and convenience sampling.

Probability sampling: This type of sampling method involves selecting a sample of elements from the population in a way that each element in the population has a known, nonzero chance of being selected. The most common type of probability sampling is simple random sampling, which involves selecting elements from the population in a completely random way.

Non-probability sampling: This type of sampling method does not involve selecting elements from the population in a way that each element has a known, nonzero chance of being selected. The most common type of non-probability sampling is convenience sampling, which involves selecting elements from the population based on convenience (e.g., the researcher’s ability to easily contact them).

Convenience sampling: This type of sampling method involves selecting a sample of elements from the population based on convenience (e.g., the researcher’s ability to easily contact them). The most common type of convenience sampling is simple convenience sampling, which involves selecting elements from the population based on whether they are easily accessible and willing to participate in the study.

## Sampling Methods Statistics

There are three main types of sampling methods: probability, non-probability, and convenience. Probability sampling methods use a random selection process to choose participants, while non-probability sampling methods do not use a random selection process. Convenience sampling is the most common type of non-probability sampling and is used when it is not possible or practical to use a probability sampling method.

## What is Sample Survey?

A sample survey is a research tool used to collect information from a representative group of people. The survey is designed to collect information about a particular topic, such as opinions on a new product or voting intentions. Survey participants are typically selected at random from a population of interest.

## Census and Sample Survey

The Census and Sample Survey Division conducts the decennial census of population and housing and other periodic censuses and surveys.

The decennial census of population and housing is the most comprehensive data collection on the population and housing of the United States. The census is a count of everyone in the United States, regardless of age, race, ethnicity, or national origin. The census also collects information on the characteristics of the housing units in which people live.

Other periodic censuses and surveys conducted by the Census and Sample Survey Division include the American Community Survey, the Economic Census, the Survey of Business Owners, and the Current Population Survey.

## Advantages of Sample Surveys Compared with Censuses

- A census is a complete enumeration of a population, while a sample survey is a subset of that population.
- Sample surveys are much less expensive and time consuming to conduct than censuses.
- Since sample surveys are based on a smaller population, they are less likely to be affected by sampling error.
- Sample surveys can be used to produce estimates of population parameters, such as the mean or the proportion, while censuses can only produce counts.

## What is a Statistical Survey?

A Statistical Survey is a study in which data is collected from a representative sample of a population with the goal of understanding the characteristics of that population. Surveys are often used to collect data on things like opinions, demographics, and behaviors.

## Steps of Implementing a Statistical Survey

1. Define the purpose of the survey.

2. Decide on the target audience.

3. Choose the survey method.

4. Create the survey questionnaire.

5. Pilot test the survey questionnaire.

6. Finalize the survey questionnaire.

7. Distribute the survey questionnaire.

8. Collect the survey data.

9. Analyze the survey data.

10. Report the survey results.

## What Factors Do You Consider When Deciding Which Sampling Tool to Use?

The factors that one considers when deciding which sampling tool to use include the size and shape of the target population, the desired level of accuracy, the resources available, and the time constraints.