METHODS OF SAMPLING

[abhishreshthaa]

SAMPLING METHODS

• There are different types of sampling designs based on two factors viz., the representation basis and the element selection technique.
  
  
• On the representation basis the sample may be probability sampling or it may be non-probability sampling. Probability sampling is based on the concept of random selection, whereas non-probability sampling is ‘non-random’ sampling.
  
  
• On element selection basis, the sampling is non-random sampling. On element selection basis, the sample may be either unrestricted or restricted.
  
  
• When each sample element is drawn individually from the population at large, then the sample so drawn is known as ‘unrestricted sample’, whereas all other forms of sampling are covered under the term ‘restricted sampling’.

1. Probability sampling

a. Simple random sampling.

b. Systematic random sampling.

c. Stratified random sampling

d. Cluster sampling

e. Multi stage sampling



2. Non-probability sampling

a. Judgment sampling

b. Quota sampling

c. Convenience sampling

 

[jamescord]

SAMPLING METHODS

• There are different types of sampling designs based on two factors viz., the representation basis and the element selection technique.
  
  
• On the representation basis the sample may be probability sampling or it may be non-probability sampling. Probability sampling is based on the concept of random selection, whereas non-probability sampling is ‘non-random’ sampling.
  
  
• On element selection basis, the sampling is non-random sampling. On element selection basis, the sample may be either unrestricted or restricted.
  
  
• When each sample element is drawn individually from the population at large, then the sample so drawn is known as ‘unrestricted sample’, whereas all other forms of sampling are covered under the term ‘restricted sampling’.

1. Probability sampling

a. Simple random sampling.

b. Systematic random sampling.

c. Stratified random sampling

d. Cluster sampling

e. Multi stage sampling



2. Non-probability sampling

a. Judgment sampling

b. Quota sampling

c. Convenience sampling

Hello abhi,

I am uploading a document which will give more detailed explanation on the Nonprobability Sampling and Bias.