Research Methods Social Flashcards
What is random sampling
Every member of a target population has an equal chance of being selected
Whats a strength of random sampling
Less likely to be a biased sample
This increases chances of representative sample
Weakness of random sampling
Takes more time and effort
What is stratified sample
Identifies different types of people of a target population and works out the needed proportions for representative data
Strength of stratified
Most representative subgroups are in right proportions as the target population
Weakness of stratified
Very lengthy and hard to find subgroups willing to take part
Bias due to categorisation
Volunteers sample
Asking people who are willing to take part via leaflet
Strength of volunteers sampling
People are less likely to leave
Weakness for volunteering sampling
Sample is more likely to be biased as volunteers are likely to be motivated
What is opportunity sampling
Ppl who are easily available at the time of the study
Strength of opportunity sampling
Most convenient
Weakness of opportunity sampling
Inevitably more biased share same belief as researcher
What is a structured interview
Strength and weakness
Structured interview asks the exact same question in the same order to every participants
S: consistency and comparison
W: limited depth
What is a unstructured interview
Strength and weakness
Informal and flexible form
Freedom to explore different topics
S depth and flexibility
W lack of comparability
What is a unstructured interview
Informal and flexible form
Freedom to explore different topics
What calculation for repeated measures
Wilcoxon
What’s the calculation for independent groups
Mann Whitney
