Callegaro, Mario.

Online panel research = a data quality perspective / by: Callegaro, Mario. (書目-電子資源)

Seam effects changes due to modifications in question wording and data collection strategies: A comparison of conventional questionnaire and event history calendar seam effects in the PSID. by: Callegaro, Mario.; The University of Nebraska - Lincoln. (書目-語言資料,印刷品)