Question

What are the types of data collection? Explain in
detail the various tools for collecting primary and
secondary data collection.​

Answer 1

DATA COLLECTION

is a process of gathering information from all the relevant sources to find a solution to the research problem. ... The data collection methods enable you to conclude an answer to the relevant question. Some of the data collection types include surveys, delphi technique, focus groups, interviews and so on

Answer 2

Define:

In Statistics, data collection is a process of gathering information from all the relevant sources to find a solution to the research problem. It helps to evaluate the outcome of the problem.

Primary Data Collection Methods

Primary data or raw data is a type of information that is obtained directly from the first-hand source through experiments, surveys or observations.

The primary data collection method is further classified into two types. They are

• Quantitative Data Collection Methods
• Qualitative Data Collection Methods

Quantitative Data Collection Methods

It is based on mathematical calculations using various formats like close-ended questions, correlation and regression methods, mean, median or mode measures.

Qualitative Data Collection Methods

It does not involve any mathematical calculations. This method is closely associated with elements that are not quantifiable. This qualitative data collection method includes interviews, questionnaires, observations, case studies, etc. There are several methods to collect this type of data.

Secondary Data Collection Methods

Secondary data is data collected by someone other than the actual user. It means that the information is already available, and someone analyses it. The secondary data includes magazines, newspapers, books, journals, etc. It may be either published data or unpublished data.

Published data are available in various resources including

• Government publications

• Public records

• Historical and statistical documents

• Business documents

• Technical and trade journals

=>Unpublished data includes

• Diaries

• Letters

• Unpublished biographies, etc.