No need to recruit and train interviewers or observers
Easier to quantify
Questionnaires - reliability
it's a fixed yardstick that can be used by any researcher to obtain the same results
meaning one researcher's study can be repeated and checked by another
Also means that if we find differences between answers, that it is a result of real differences between the respondents
this allows for comparison and discussing to be deepened
Questionnaires - Detachment and objectivity
sociologist’s personal involvement with their respondents is kept to a minimum
Questionnaires - Repetitiveness
because they can collect information from a large number of people, the results stand a better chance of being fully representative of the wider population
they also allow for us to make accurate generalisation about the wider population
Questionnaires - Ethically right
despite some questionnaires posing sensitive questions to respondents, they choose to answer them, making them less pressured than interviews
meaning they're more likely to respond with accurate answers
Questionnaires - practical problems
info is limited and superficial because they need to be fairly brief in order to generate responses
despite being cheap to make, you may need to offer incentives for being to want to complete them, raising the amount spent.
Questionnaires - Low response rate
few of those who receive a questionnaire bother to complete and return it
busy employed people are less likely to respond then unemployed or socially isolated people, which creates a skewed response that isn’t representative.
Questionnaires - inflexibility
once its been finalised, the researcher cannot change the question they have decided to ask
unlike unstructured interviews, where the sociologist can develop and ask new questions if they seem relevant.
Questionnaires - works as snapshots
they give a picture of reality at only one moment in time, they fail to produce a fully valid picture because they do not capture the way people's attitudes and behaviour change.
Questionnaires - Lying, forgetting and 'right answerism'
problems of validity are created when respondents give answers that are not full or frank
respondents may lie, forget, not know, not understand, or try to please the researcher
puts questionnaires at a disadvantage compared to ace to face methods like observations.