Research Methods Flashcards
(131 cards)
What is an aim?
The intent of a study
What is a hypothesis?
What you think you are likely to find out
What does operationalising a variable mean?
Defining a variable so that it is easy to understand and easily measured
What is a Pilot Study?
A small scale study conducted before the actual study to find issues that need to be changed
What is a random sample ?
A sample where every member has the same chance of being selected
What are some evaluation points for using a random sample?
Positive-no bias, not time-consuming
Negative-not likely to be representative
What is a systematic / quasi-random sampling method ?
Participants names are out into a list and every nth person is selected
What are some evaluation points of using systematic/quasi-random sampling ?
Positive-efficient and free from bias
Negative-not likely to be representative
What is a stratified sample ?
Breaking the population into groups and take a proportional sample reflecting the population
What are some evaluation points of using stratified sampling ?
Positive-representative
Negative-more time consuming than other sampling methods
What is quota sampling ?
Using a stratified method but select the individual participants using an opportunity sample rather than a random sample
What are some evaluation points of using a quota sampling method ?
Positive-representative
Negative-biased and time consuming
What is cluster sampling ?
Selecting a geographical area and take a random or stratified sample from people in that area
What are some evaluation points of using a cluster sampling method ?
Positive-representative of the area
Negative-may not be representative of larger areas
What is snowball sampling ?
Building a rapport with one participant and asking them to get more people to participate
What are some evaluation points of using snowball sampling ?
Positive-can get access to difficult groups such as criminals
Negative-not representative,small sample sizes
What is an opportunity sampling method ?
Asking people who are available at the time of the study to participate in the study
What are some evaluation points of using opportunity sampling ?
Positive-easy and not time-consuming
Negative-not representative, biased
What is volunteer sampling ?
Posting an advert and those who respond are participants in the study
What are some evaluation points of using volunteer sampling ?
Positive-convenient
Negative-not representative
What is primary data ?
Data collected by the researcher themselves for the purpose of their study
What are some advantages of using primary data ?
-specific to the study
-can use the format that is right for the overall study eg quantitative or qualitative
-higher validity
What are some disadvantages of using primary data ?
-could include bias
-time consuming
What is secondary data ?
Data that has been previously collected by another researcher for the purpose of a previous study