research methods Flashcards
aim
broad statement of what the researcher intends to investigate
objectives
more sepecific and measurable steps the researcher will take to acheive the aim
hypothesis
informed guess to what they think will be the outcome
research questions
clear focused question or aim that the reseach will answer
operisationalism
breaking down te hypothesis or research aim
pilot study
is a small scale version of the main research (a dress rehearsal)
* they are useful to identify problems in the research design
* sociologists can save time and money in the long run by identifying any problems with the sampling technique
sampling
is the way in which the researcher recruits people that take part in the study by:
1. considering the target population
2. use a sampling frame
3. the sampling method
sampling frame
a list of people from which the sample may be drawn.
what are the types of sampling methods
- systematic
- stratified
- quota
- snowball
- purposive
- volenteer
systematic sampling
randomly choosing a number anf selecting every nth name from the sampling frame
stratified sampling
dividing the research population into different sampling frames and people are sampled from each frame
quota sampling
researcher chooses how many of each catagory should be included in the sample
snowball sampling
one contact will recruit other contacts to get involved
purposive sampling
researchers choose individuals that fit the nature of the reseach- choosing a particular group or place
volenteer sampling
making the most of situations/opportunities the research population is likely to be found
advantages of systematic sampling
- everyone has the same chance
- reliable
- no researcher bias
- preferred by positivists becuase of its scientific nature
disadvantages of systematic sampling
- time consuming (lowers representitiveness and genderalisabilty)
- sampling frame wont alwaysd provide useful information so can be bias
- can lack representitveness if a greater number of one type of person is picked out.
advantages of stratified sampling
- can ensure that each group is represented
- not biased (representiviveness)
- preferred by positivists
- reliable
disadvantages of stratified sampling
- time consuming
- people may pull out (lowers representitiveness and generalisability)
- sampling frame may not give specific groups to involve
- if come groups have a large number of people, then they are more likely to be chosen/bias
advantages of quota sampling
- useful when theres no sampling frame
- more representitive than other non-random samples
- targets a range of groups
disadvantages of quota sampling
- researcher may be bias towards a certain group (lowers representitiveness)
- no sampling frame
- less scientific
- more difficult to repeat
- numbers needed may not be representitaive of the target population
advantages of snowball sampling
- useful when theres no sampling frame
- more representitive
- good for groups with difficult access
- easy if one person acts as a gatekeeper- allows access and can build a rapport (validity)
disadvantages of snowball sampling
- not representitive- no sampling frame
- biased and subjective
advantages of volenteer sampling
- useful when theres no sampling frame
- good when theres a specific type of person needed (representitive)
- easy/quick to get a large sample