20 questionnaire design Flashcards
primary instrument for surveys, asks questions of representative pop sample
questionnaires
assess nutr. status and diet intakes
nutr and food consumption surveys
describe disease distr and association with possible causative factors
epidemiologic surveys
construction steps for questionnaire?
1) researcher defines info being sought (wish list!), 2) draft questionnaire (phrase well) , 3) questionnaire pilot with small group and get feedback 4) redraft questionnaire (maybe redo pilot trial) 5) administer questionnaire (full sample, analyze)
2 main formats of questionnaire
interview schedule and self-adminsitered
advantages of interview schedule?
lower rejection, more detailed, greater control over filling form
advantages of self-admin?
cheap, less susceptible to interviewer bias, can be mailed
disadvantages of interview schedule?
expensive to administer, responses susceptible to bias
disadvantage of self-admin?
higher rejection rate, difficult elicit detail, less control over how response form filled out
advantage of open ended?
more detailed answers elicited
advantage of closed response?
tight structure, easy to encode/analyze, less time to complete
disadvantage of open ended?
less structure, difficult encode/analyze, greater time for respondent to answer, more diff. than circling a number
disadvantages of closed-response?
less depth in answers, may frustrate respondents
considerations for closed?
can’t be too restrictive to bias responses, not impose researcher’s conceptualizations–>needs more prep than open ended to prevent ambiguity
qualitative research uses more ____ questions
open ended ; opt for interview instead of questionnaire maybe
what is different about 4 point forced-choice response from conventional likert?
no middle/undecided answer, guards against acquiescent response mode and encourages extreme response mode
advantage of likert type?
allows middle undecided response
advantage of forced choice?
respondent forced give either + or -
disadvantages of likert?
acquiescent response mode
disadvantages of forced choice?
undecided response not allowed
common question pitfalls?
double barreled (two in one), ambiguous, db negs, level of wording (jargon), bias and leading questions
typical components of questionnaires?
intro statement (researchers, if confidential/anonymous, purpose, how will be used), demographic questions, factual questions, opinion questions (require reflection), closing statements and return instructions (thank, invite, inform)
