vote choice

The Use of Selection Bias Models in Item Non-Response Surveys

Survey researchers inevitably face the problem of item non-response; that is, some respondents provide valid answers to some questions, but provide invalid answers to others, such as “don’t know,” “no opinion,” or “hard to say.” However, including only those respondents who provide valid answers for each question may bias the estimates, because non-response does not occur randomly.

District Ballot of the 2008 Legislative Yuan Election:A Multilevel Model

Voters are nested in electoral districts and are therefore often affected
by the macro-level characteristics of the districts. By incorporating both the
individual-level and district-level variables, we construct a two-level model
to analyze voters’ voting choices on the single-member-district ballot in the
2008 legislative election. We find that indeed some theoretically important
variables at both levels play significant roles in voters’ decisions. At the
micro level, we confirm that candidate evaluation, party identification,

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