what is the definition of primary data and secondary data in statistics
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Primary data means original data that has been collectedspecially for the purpose in mind. It means someone collected the data from the original source first hand. Data collected this way is called primary data.
The people who gather primary data may be an authorized organization, investigator, enumerator or they may be just someone with a clipboard. Those who gather primary data may have knowledge of the study and may be motivated to make the study a success. These people are acting as a witness so primary data is only considered as reliable as the people who gathered it.
Research where one gathers this kind of data is referred to as field research.
For example: your own questionnaire.
Secondary DataEdit
Secondary data is data that has been collected for another purpose. When we use Statistical Method with Primary Data from another purpose for our purpose we refer to it as Secondary Data. It means that one purpose's Primary Data is another purpose's Secondary Data. Secondary data is data that is being reused. Usually in a different context.
Research where one gathers this kind of data is referred to as desk research.
For example: data from a book. Primary data refers to the original data that has been collected specially for a particular purpose in the mind
The people who gather primary data may be an authorized organization, investigator, enumerator or they may be just someone with a clipboard. Those who gather primary data may have knowledge of the study and may be motivated to make the study a success. These people are acting as a witness so primary data is only considered as reliable as the people who gathered it.
Research where one gathers this kind of data is referred to as field research.
For example: your own questionnaire.
Secondary DataEdit
Secondary data is data that has been collected for another purpose. When we use Statistical Method with Primary Data from another purpose for our purpose we refer to it as Secondary Data. It means that one purpose's Primary Data is another purpose's Secondary Data. Secondary data is data that is being reused. Usually in a different context.
Research where one gathers this kind of data is referred to as desk research.
For example: data from a book. Primary data refers to the original data that has been collected specially for a particular purpose in the mind
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primary data is direct collected from persons and secondary data is recollection of primary data from any institustion firm secondary data is indirectly collected
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