Nonresponse Bias in The Survey of Youth Understanding of Science and Technology in Bogotá

• Authors: Castellanos Edgar Mauricio Bueno
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

Sampling design; nonresponse bias; calibration

• Publisher: Główny Urząd Statystyczny
• Journal: Statistics in Transition new series
• Year: 2012
• Volume: 13
• Issue: 1
• Pages: 79-94

Contributors

author

Castellanos Edgar Mauricio Bueno

• Colombian Observatory of Science and Technology

References

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