In multistage sampling, or multistage cluster sampling, you draw a sample from a population using smaller and smaller groups (units) at each stage. It’s often used to collect data from a large, geographically spread group of people in national surveys. Multistage sampling is defined as a sampling method that divides the population into groups (or clusters) for conducting research. It is a complex form of cluster sampling, sometimes, also known as multistage cluster sampling. During this sampling method, significant clusters of the selected people are split into sub-groups at various stages to make it simpler for primary data collection.
There are two types of multistage sampling – multistage cluster sampling and multistage random sampling. In market research, multistage sampling is the choosing of samples at stages and choosing smaller sampling units at every step. Let’s take a look at these two approaches in detail.
Multistage sampling is defined as a sampling method that divides the population into groups (or clusters) for conducting research. It is a complex form of cluster sampling, sometimes, also known as multistage cluster sampling. During this sampling method, significant clusters of the selected people are split into sub-groups at various stages to make it simpler for primary data collection. It is to distinguished from multistage cluster sampling.
Example 1:
Your population is all students aged 13–19 registered at schools in your state. If you’re unable to access a complete sampling frame, you can’t use single-stage probability sampling from the whole population. In addition, collecting data from a sample of individuals across the state would be very difficult, costly, and time-intensive. Instead, you decide to use a multistage sampling method to collect a representative sample of participants.
In multistage sampling, you always go from higher-level to lower-level clusters at each stage. The clusters are often referred to as sampling units.
At the first stage, you divide up the population into clusters and select some of them: these are your primary sampling units (PSUs). At the second stage, you divide up your PSUs into further clusters, and select some of them as your secondary sampling units (SSUs). You can end at the second stage, or continue this process with as many stages as you need. In the last stage, you’ll get to your final sample of ultimate sampling units (USUs).
Example 2
Let’s consider the sample location as the USA. The research goal is to assess the online spending trends of people in the US through an online questionnaire. Researchers can form their sample group comprising 200 households in the following manner:
The process of sampling complete groups or units is called cluster sampling, situations where there is any sub-sampling within the clusters chosen at the first stage are covered by the term multistage sampling. While, the population is regarded as being composed of a number of first stage or primary sampling units (PSU's) each of them being made up of a number of second stage units in each selected PSU and so the procedure continues down to the final sampling unit, with the sampling ideally being random at each stage.
The benefits obtained from multistage sampling:
MS in Biology...
I am skilled to do research to find proper content for research papers, thesis and dissertation. I give only verified co...
200 Completed Orders
56 Student Reviews
Masters in Account...
I am thorough with the changing financial scenario in US and the factors behind it. I am also updated with the changing ...
250 Completed Orders
34 Student Reviews
MS in Statistics...
I am skilled in creative writing to craft any kind of assignment especially essays, thesis and dissertations of any kind...
360 Completed Orders
45 Student Reviews
M.sc in Electronic...
Allotting responsibilities and giving directions on achieving the targets within the team. Excellent research and creati...
350 Completed Orders
45 Student Reviews
MS in Computer Sci...
I boast excellent observation and analysis skills. I am excellently thorough with the subject knowing all the aspects, a...
400 Completed Orders
42 Student Reviews
Msc in Nursing fro...
I am in this field for 15 years, which helps me come up with unique topics and cases for students’ papers. I have comp...
400 Completed Orders
125 Student Reviews
I took a MBA degre...
Along with an in-depth knowledge in marketing I am also skilled in composing assignments especially case studies with pr...
300 Completed Orders
51 Student Reviews