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Chapter VI. Measurement of interviewer errors in the SRC Telephone Survey
1Servey Research Center, Institute for Social Research, University of Michigan, USA.
Summary
Stringent controls in a telephone survey revealed minimal interviewer effects. This finding limits the ability to explore interviewer variability in health variables due to low variance.
Area of Science:
- Social Sciences
- Health Research Methodology
Background:
- Interviewer effects can influence survey data.
- Previous studies have shown significant interviewer variability.
Purpose of the Study:
- To assess interviewer effects in a telephone survey.
- To investigate the impact of stringent interviewer controls on data variability.
Main Methods:
- Telephone survey methodology.
- Implementation of strict controls on interviewer behavior.
- Analysis of interviewer variance on health variables.
Main Results:
- Unusually low interviewer effects were observed.
- Low interviewer variance limited the explanation of variability in health variables.
- Correlations within monitoring data were weak due to minimal interviewer variability.
Conclusions:
- Stringent interviewer controls can significantly reduce interviewer effects in telephone surveys.
- Reduced interviewer variability poses challenges for analyzing interviewer-related data.
- The study highlights the impact of methodological controls on survey data interpretation.