Key Words Flashcards
what is primary data?
collected by sociologists themselves for their own research purposes
what is secondary data?
collected by someone else for their own purposes
what is quantitative data?
information that can be expressed in numerical form
what is qualitative data?
information concerned with descriptions and meanings
what is a sampling frame?
list of members of research population from which a representative sample is drawn
what is random sampling?
where a sample is selected purely by chance, e.g. names from a hat
what is quasi random sampling?
similar to random, like every nth name on a list
what is stratified random sampling?
when the population is stratified into relevent categories and a sample is selected randomly from each, ensuring that the proportions of each category in the sample are the same in the whole population
what is quota sampling?
where the researcher goes out looking for the right number of each sort of person required in a category
what is non representative sampling?
may be used where there is no sampling frame - interpretivists have less need for representative samples and want validity
what is snowball sampling?
collected by contacting key individuals and asking them to suggest others to be studied, a way of contacting a sample that is difficult to find
what is opportunity sampling?
choosing from individuals easiest to access
what can be the practical issues of research?
- time and money - some methods more costly and tie consuming and some researchers have better access than others
- requirements of funding bodies
- personal skills of researcher may restrict methods
- subject matter - may be harder to study particular groups with particular methods
- research opportunity
what can be the ethical issues of research?
- informed consent - people must be able to make an informed decision
- confidentiality
- effects on participants - need to be aware of possible harmful effects and try to prevent them
- special care should be taken of vulnerable groups
what is validity?
how far the research provides a true and genuine picture of what is being studied