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The impact of mixing modes on reliability in longitudinal studies


  • Cernat, Alexandru


Mixed mode designs are increasingly important in surveys and large longitudinal studies are progressively moving to or considering such a design. In this context our knowledge regarding the impact of mixing modes on data quality indicators in longitu- dinal studies is sparse. This study tries to ameliorate this situation by taking advantage of a quasi-experimental design in a longitudinal survey. Using models that estimate reliability for repeated measures, quasi-simplex models, 33 variables are analysed by comparing a single mode CAPI design to a sequential CATI-CAPI design. Results show no differences in reliabilities and stabilities across mixed modes either in the wave when the switch was made or in subsequent waves. Implications and limitations are discussed.

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  • Cernat, Alexandru, 2013. "The impact of mixing modes on reliability in longitudinal studies," ISER Working Paper Series 2013-09, Institute for Social and Economic Research.
  • Handle: RePEc:ese:iserwp:2013-09

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    References listed on IDEAS

    1. Lynn, Peter, 2012. "Mode-switch protocols: how a seemingly small design difference can affect attrition rates and attrition bias," ISER Working Paper Series 2012-28, Institute for Social and Economic Research.
    2. Lynn, Peter & Kaminska, Olena, 2011. "The impact of mobile phones on survey measurement error," ISER Working Paper Series 2011-07, Institute for Social and Economic Research.
    3. Burton, Jonathan & Laurie, Heather & Uhrig, S.C. Noah, 2010. "Understanding Society Innovation Panel Wave 2: results from methodological experiments," Understanding Society Working Paper Series 2010-04, Understanding Society at the Institute for Social and Economic Research.
    4. Jäckle, Annette & Roberts, Caroline & Lynn, Peter, 2006. "Telephone versus face-to-face interviewing: mode effects on data quality and likely causes: report on phase II of the ESS-Gallup mixed mode methodology project," ISER Working Paper Series 2006-41, Institute for Social and Economic Research.
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    Cited by:

    1. Cernat, Alexandru, 2014. "Impact of mixed modes on measurement errors and estimates of change in panel data," Understanding Society Working Paper Series 2014-05, Understanding Society at the Institute for Social and Economic Research.
    2. Cernat, Alexandru & Lugtig, Peter & Uhrig, S.C. Noah & Watson, Nicole, 2014. "Assessing and relaxing assumptions in quasi-simplex models," ISER Working Paper Series 2014-09, Institute for Social and Economic Research.

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