If the population is heterogeneous, which one of the following probability sampling methods is more appropriate ?

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Business Statistics and Research Methods

If the population is heterogeneous, which one of the following probability sampling methods is more appropriate ?

This question was previously asked in

UGC NET 2015 Paper 1 Question Paper (27-Dec-2015)

Sequential sampling

Quota sampling

Double sampling

Stratified sampling

The correct answer is

Stratified sampling

When a population is heterogeneous (made up of distinct groups that differ in the characteristic studied), a simple random sample may over- or under-represent some groups.

Stratified sampling divides the population into homogeneous sub-groups (strata) and then draws a random sample from each stratum, proportionately or disproportionately. This ensures every group is represented and gives more precise estimates for a heterogeneous population.

Quota sampling also uses groups, but units within each quota are picked at the interviewer's convenience, so it is a non-probability method. Sequential and double sampling decide the sample size in stages and are not designed to deal with heterogeneity of the population.

So stratified sampling is the appropriate probability method for a heterogeneous population.

Hence, the answer is Stratified sampling.

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Important Questions from Methods of sampling - Teaching

In case study research the most common form of sampling is -
Business Statistics and Research Methods
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To conduct a study on Anganwadi workers, the researcher randomly selected five districts out of 30 districts of a state and collected data from each and every Anganwadi worker from these five districts. This is an example of _____
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Which of the following is Not a type of stratified Sampling ?
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Match List I with List II

LIST I	LIST II
A. Simple Random Sampling	I. Population is divided into strata out of which the sample is drown independently
B. Stratified Random Sampling	II. Sampling wherein a group of subjects is taken altogether as a sampling unit
C. Systematic sampling	III. Each member of the population has an equal chance of being selected in the sample
D. Cluster sampling	IV. Every 9th case is chosen for the study from a list of cases.

Choose the correct answer from the options given below:

Business Statistics and Research Methods

The advantages of using probability sampling are
A. Perfect control on extraneous variables
B. Convenient when sample is very small
C. Absense of sampling biasness
D. Lesser degree of judgement
E. Faster and cost effective
Choose the correct answer from the options given below:
Business Statistics and Research Methods
View Answer

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