• Marktonderzoek met SPSS

      Wijnen, Katrien; Janssen, D.; De Pelsmacker, Patrick; Van Kenhove, Patrick (2002)
    • The influence of topic involvement on mail survey response behavior

      De Wulf, Kristof; Van Kenhove, Patrick; Wijnen, Katrien (2003)
      This study experimentally investigated the influence of topic involvement on mail survey response rate and speed. The results show that response rates were higher for topics that are generally considered as high involvement than for topics that are generally considered as low involvement. Moreover, we observed an interesting interaction effect. On the one hand, a positive and significant relationship existed between topic involvement and response rate for topics that on average are viewed as high involvement, leading to a non-response bias. On the other hand, no significant relationship was found between topic involvement and response rate for topics that on average are viewed as low involvement. Finally, we were not able to observe a relationship between topic involvement and response speed for topics that are, on average, either high or low involvement.
    • The influence of topic involvement on mail-survey response behavior

      Van Kenhove, Patrick; Wijnen, Katrien; De Wulf, Kristof (Psychology & Marketing, 2002)
      In this study the influence of topic involvement on mail-survey response rate and speed was experimentally investigated. The results show that response rates for topics that are generally considered as high involvement were higher than for topics that are generally considered as low involvement. However, the speed of response did not differ between the two levels of topic involvement. Moreover, in terms of response rates an interesting interaction effect was observed: For the high-involvement topic, the response rate showed a further positive and significant correlation with the within-topic level of involvement, but this was not the case for the low-involvement topic. The implications of these findings to nonresponse bias in mail survey research are discussed.