Some Q/A on web survey metodology

Oct 07 2015

 #AskAAPOR What I always wanted to know, how many questions can I ask in web surveys before break off goes up and data quality goes down?

Authors of Web Survey Methodology: Some models have estimated that additional question adds  the increase in breakoff rate of 0.06%, which is similar to the results from SurveyMonkey study. More elaboration can be found in thebook section on Questionnaire length ( and in dedicated treatment on Breakoffs  (, where indicators and occurrence in different types of surveys is presented.

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