IDOL Mumbai University important questions bank  

M.com Part 1 (sem. 2)

RESEARCH METHODOLOGY FOR BUSINESS

Q.9. What are the factors determine sample size?

ANS:

1) Area of Research:

The number of sample respondents depends on the area
of research. If the research is conducted at national level, it may require
more number of respondent. If the research is conducted at local level, it may
require less number of respondents.

2) Availability of Funds:

Generally, the researcher may be constrained by the
limitation of funds to conduct the research. Therefore, when the researcher has
limited amount of funds allocated to the research activity, the sample size
would be lesser as compared to when the researcher has larger amount of funds.

3) Availability of Manpower:

The researcher may require manpower to conduct
surveys, interviews or for conducting experiments, observation etc. Eg. If the
researcher has a good number of filed staff to conduct interviews, he may
select the larger sample size of respondents and vice-versa.

4) Time Frame:

The sample size may depend on the time frame of research.
If the researcher has lot of time available to conduct the research, he may
select a large sample size of respondents and vice versa.

5) Nature of Research:

The nature of research may influence the sample size
of respondents. Eg. In case of academic research, the researcher may be
constrained with the limitations of funds, and therefore, he may select a
smaller sample size. However, in the case of census survey of population, the
sample size will be the entire population of the country.

6) Method of Sampling:

The method of sampling may influence the sample size
of respondents. Eg. If convenience sampling method is used, the researcher may
consider a smaller sample size to obtain responses. However, in case of stratified
sampling or cluster sampling, the researcher needs to select a larger sample
size of respondents.

7) Method / Sources of Data Collection:

The method of data collection may influence the sample
size of respondents. Eg. If researcher collects data through interviews, he may
select a larger sample size of respondents. However, if the researcher adopts
observation method, he may consider a smaller sample size for the purpose of
observation.

8) Judgment of the Researcher:

At times, the researcher may use his judgement in
deciding in the sample size. He may consider a smaller sample size, if he is
confident in getting the adequate data from a smaller sample size. However, if
the researcher feels that he needs to select a larger sample to collect
responses, he may select a larger sample size.

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