Basis of Difference

Primary Data

Secondary Data

1. Definition

1. They are collected for the first time.

1. They have already been collected by some other persons.

2. Accuracy

2. They are accurate.

2. They lack accuracy.

3. Nature of Data

3. They are in the form of raw data to which statistical methods are applied.

3. They are in the form of finished products.

4. Editing

4. They do not require editing.

4. They require editing.

5. Time and money

5. Collection of primary data requires a lot of time and money.

5. They dp not require a lot of time and money.

6. Precaution

6. Precaution is not required in the use of primary data.

6. Precautions are required in the use of secondary data.