Primary and Secondary Data Flashcards
Primary Data
Data that has been collected first hand by the researcher for the study they are undertaking
Secondary Data
Data that’s already available and that wasn’t collected by the researcher for the study they are undertaking
Srengths of Primary Data
- Targets the sepcific information the researcher needs - Primary research allows researcher to make sure the data is in the correct format to test hypothesis
Limiations of Primary Data
- Expensive
- Time-consuming
Ex: A researcher may use a questionnaire to collect primary data. They would have to design a questionnaire, send them out and then wait for responses + This costs money and takes time - If this researcher uses data on a Government website instead, then they don’t have to wait to analyse it and they don’t have to pay to gather the data
Strengths of Secondary Data
- Cheaper/More cost effective
- Minimal effort to collect data
- Less time-consuming - Researcher wouldn’t have to wait for responses or for data to be collected, they can simply begin analysing
Limitations of Secondary Data
- The information may not be specific to the study - Ex: A researcher may be investigating the correlation between exercise and depression, whereas the secondary data may be about mental health as a whole
What is another name for primary research?
Field research
What is another name for secondary research?
Desk research
If a researcher uses some of their old data which they collected for a different study, to use in their new study, is this primary or secondary data?
Although the researcher did collect the data first hand, it would be secondary data, as the data was collected for a different study than the one the researcher is currently undertaking
Meta-Analysis
When a resercher combines results from multiple different studies on the same topic to create an overall conclusion
Is a meta-analysis an example of primary or secondary data?
Secondary data
Strengths of Meta-Analysis
- Generalisability - Researchers have access to more Ps data than if they conducted their own study + Can allow the researcher to draw upon more accurate conclusions
- Usually has a high validity - If the studies analysed are similar, well-designed and valid, then the conclusion is likely to be valid
Why might a meta-analysis not have high validity?
If the studies analysed to contruct the conclusion were not similar, well-designed or valid, then the meta-analysis’ conclusion will be invalid
Limitations of Meta-Analysis
- Due to publication biases, some researchers intentionally don’t publish all their data, (specifically negative results), because editors prefer publishing positive findings and ‘headline grabbing’ studies - This can give a false representation of what the researcher is investigating
Can a Psychologist use both primary and secondary data in the same study?
Yes