What are questionnaires
Set of written questions to collect information on a topic
What is reliability
Can researchers use the same methods and obtain the same results?
What is validity
How much a study represents a truer and accurate description or a measurement
What is Representativeness
Researchers should try to ensure that participants reflect the wider society
Pros of questionaries
Can be distributed to large numbers of people quickly and cheaply
Cons of questionnaires
Can only be filled by people who can read or write and have time and motivation to fill in
What are structured interviews
Pre determined questions on a questionnaire delivered face to face
Pros of structured interviews
Easily repeated due to standardised questions and can be easily compared
Cons of structured interviews
Different interviews may behave differently causing a lower reliability
What are unstructured interviews
Interview starts with a general aim and questions and then interviewer guides subsequent questions based on previous answers
Pros on unstructured interviews
More detailed info
Cons of unstructured interviews
Interviewer requires more skill due to the development of questions on the spot
What is social desirability bias
A distortion in the way people answer questions so it puts them in a better light
What are semi-structured interviews
Mixture of structured and unstructured questions
3 reasons why an interview is better than a questionnaire
-more in-depth responses
-can develop a rapport
-can ask follow up questions
-wider range of people to study- children who can’t read or write
3 reasons why a questionnaire is better than an interview
-participant may feel more comfortable as they can’t be judged by an interviewer
-easier to conduct- less time consuming, cheaper=higher sample size =higher population validity= increased representativeness= higher generalisability
-answers easier to analyse and compare
Pros of quantitative data
Easier to analyse and compare- spot patterns
Larger sample size= higher population validity
Cons of quantitative
Less in depth
Pros of Qualitative date
Increased detail= higher validity
Develop a rapport so participants feel more comfortable to answer questions
Cons of qualitative data
Harder to analyse
Higher subjectivity
Smaller sample size= less representation