Primary Research vs secondary research

Feature

Primary Research

Secondary Research

Definition

Research involves collection of original data specific to the study.

Research involves summary of data and literature published by others. 

Purpose

To gather information and answers to the questions never asked before. Used to fill gaps from secondary research.

To go through the pre-existing information and find data that aligns with the research topic.

Time and cost

It is more time and cost consuming as it is conducted first-hand.

It is not much time and cost consuming as it involves using already existing literature.

Source of data

Surveys, interviews, observation, data analysis, focus groups.

Journals, books, articles, publications, educational institutes, research reports and papers.

Researcher participation

High researcher participation as he himself conducts the surveys and interviews.

Low researcher participation as they only study the work of other researchers. 

Based on

Raw data collected from subjects.

Already interpreted and analysed data.

Data 

Is specific to the researcher’s interest.

Data may or may not be specific to the topic.

Carried by

Researchers carry primary research themselves.

Secondary research is mostly carried by someone else. 

Process 

It is slow and very detailed.

It is fast and quick.

Response bias

Has a high possibility of response bias. Depends on the respondents and researcher’s personal interests.

No scope for response bias as there is no raw data collection only referring. However, if the previous study includes a bias, it is likely to be inherited in your research as well.

Focus on factors

Focuses on one or two factors specific to the topic, limiting the broadness of the study and exploration of various topics.

Has a chance to focus on various factors that affect the study through studying different literature. Helps you broaden your study.

Data validity

Cannot guarantee data validity as participants may not take the surveys and interviews seriously. 

Data validity is not an issue since the study is already successful and that’s is the reason it is being referred to in the first place. 

Ethical considerations

Requires awareness of ethics while contacting the participants.

It is not an issue as long as you are studying the literature with the permission of the researcher who owns the literature.

Data time frame

Data collected is recent and parallel to the latest issues.

Depends on the data collected when the research was done. It can be old data and might not be applicable to recent times. 

Data relevance

As the data collection is done by the researcher himself, the collected data is more likely to be relevant to the study. 

Data collection is done by some other researcher so sometimes you might not find something you are looking for.