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Nonresponse bias in the Survey of Youth Understanding of Science and Technology in Bogotá

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  • Edgar Mauricio Bueno Castellanos

Abstract

The Colombian Observatory of Science and Technology -OCyT- developed, in 2009, a survey about understanding of Science and Technology in students of high school in Bogotá, Colombia. The sampling design was stratified according to the nature of school (public or private). Two sources of unit nonresponse were detected. The first one corresponds to schools that did not allowed to collect information. The second source corresponds to students who did not assist during the days when survey was applied. Estimates were obtained through two different approaches. Results obtained in both cases do not show visible differences when estimating ratios; even though, some great differences were observed when estimating totals. Results obtained using the second approach are believed to be more reliable because of the methodology used to handle item nonresponse.

Suggested Citation

  • Edgar Mauricio Bueno Castellanos, 2012. "Nonresponse bias in the Survey of Youth Understanding of Science and Technology in Bogotá," Statistics in Transition new series, Główny Urząd Statystyczny (Polska), vol. 13(1), pages 79-94, March.
    • Handle: RePEc:csb:stintr:v:13:y:2012:i:1:p:79-94
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