Optional items:
- item response rates for each variable. The rate is the ratio of the number of item responses to the number of in scope respondents,
- a description of the reasons for non-response and an assessment of non-response biases for one of the major questions in the questionnaire.
Online Language Learning Tool SkELL allows users to search for phrases in sentences, collocates and similar words. These examples have been automatically selected and may contain errors.