Disadvantages of Secondary Data:

It is however difficulty to find secondary data that exactly fits into the needs of some specific research investigation. The problem experienced in respect of secondary sources can be in terms of:

1. Relevance : The data may not fit into the needs of investigation. There may be difference n the unit of measurement there may be surrogated data discrepancy of classes and data may persons to supply the desired information.

2. Accuracy: It is observe that it is rather difficult to measure the degree of approximations used in the collection of information as well as the competence of the investigator in motivating the persons to supply the desired information.

3. Other limitations

a. There may be difficulties in the identification of the source.

b. Errors may be there in recording or transferring information form secondary sources.

c. The facilities or capabilities of the agency that originally collected the might be questionable.