Surveys Flashcards
what types of information can we collect by surveys?
prevalence
burdens or consequences
use of services
behaviours
what are advantages of surveys?
a large number of respondents can be reached with minimal cost
Collect data on numerous variables
Multiple use of dataset
how do we develop an interview/questionnaire?
Defining and clarifying survey variables
Formulating questions
Formatting the questionnaire or interview guide
Pilot testing and revision
how do we identify survey variables?
Literature review
Interacting with target population
how many survey variables should there be?
As many as necessary and as few as possible
how should a questionnaire be formatted?
should make reading questions, following instructions, and recording answers as easy as possible
what should the sequencing of a questionnaire be?
Start with easy questions that have obvious relevance to the topic of the survey
Topically related subjects should be clustered together
Demographic questions often placed at the end of the questionnaire
Have smooth transitions between topics
Within each topic, start with general questions followed by ones that become increasingly more specific
what are factors affecting the study rigor?
Sampling
Response rate
How the survey is carried out
how can you reduce non response?
frequent follow up
flexible timing
what is a major source of non response bias for surveying?
Failure to collect data from a high percentage of sample