Methods of Data Collection and Mode of Administration
Methods of Data Collection and Mode of Administration
Methods of Data Collection and Mode of Administration
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Effects <strong>of</strong> mode: Participation• Sample frame <strong>and</strong> design• information about sample unit• method for selecting respondent• screening• Initial approach• advance letter• show <strong>of</strong> credentials• demonstration <strong>of</strong> "harmless" presence, legitimacy• Followup• mode <strong>and</strong> staffing <strong>of</strong> followup contacts• availability <strong>of</strong> mixed mode contacts• Respondent preference• Comment: <strong>Mode</strong>s differ in which interpersonal norms are activated <strong>and</strong>provide motivation for participation. <strong>Mode</strong> may affect who participates aswell as how many participateEffect <strong>of</strong> mode on participation: Comparison <strong>of</strong>face-to-face <strong>and</strong> telephonePercent CompleteFaceto-faceTelephoneHochstim (1967:979) 93 91Groves( 1979: 192) 74 59-70Jordan et al. (1980: 212) 64 49Sykes <strong>and</strong> Collins (1988) 606867de Leeuw & van derZouwen (1988:288)53464575 69Effect <strong>of</strong> mode on participation: Metaanalysis<strong>of</strong> 45 studies (Hox <strong>and</strong> de Leeuw1994)P face-to-face 70%P telephone 67%P mail 61%Effects <strong>of</strong> mode: Item nonresponseStudy Question FTF vs PhoneGroves <strong>and</strong>Kahn(1979:195)Jordan et al.(1980:212-16)Kormendi(1988:347)de Leeuw <strong>and</strong>van derZouwen (1988)Sykes <strong>and</strong>C o llin s(1988:311)incom eincom eattitudesincom evariousalcoholm ore m issingphonemore missingphonemore DK/NAphonem ore m issingphoneslightly m ore likelyto be missing onphonem ore likely to bemissing inpersonal
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