Study Notes management accounting acca f2

 
Advantages
▪ Fewer investigators are needed 
▪ It is not costly to obtain a sample 
▪ Does not require a sample frame of the entire population 
 
Disadvantages
▪ There is possibility of bias if only small number of region selected 
▪ The methods not currently random once the final sampling areas have been selected the rest of 
the population cannot be in the sample. 
▪ If the population is heterogeneous, the area chosen should reflect the full range of the diversity 
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Cluster sampling: 
Cluster sampling is a non-random sampling method that involves selecting one 
definable subsection of the population as the sample, that subsection take to be representative of the 
population in question. For example Cluster sample of all children at school in one country. 
 
Advantages
▪ It is good alternative to multistage sampling if a satisfactory sampling frame does not exist. 
▪ It is inexpensive to operate 
 
Disadvantages
▪ The potential for considerable bias 
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Non-probability sampling: 
is a method in which the chance of each member of the population appearing 
in the sample is not known. There is only one method of such type of sampling. 
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Quota sampling 
is commonly used by market researchers and involves stratifying the population and 
restricting the sample to a fixed number in each stratum 
 
Advantages
▪ It is cheap and administratively easy 
▪ A much larger sample can be studied
▪ No sampling frame is necessary 
▪ Only possible approach in certain situation such as television audience research 
▪ Quota sampling yields enough accurate information for many forms of commercial market 
research