Research Methods for Understanding Aircraft Noise Annoyances and Sleep Disturbance (2014) / Chapter Skim
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8 Comparison of Respondents by Survey Mode One major item of interest is whether the relationship between noise exposure and annoyance differs in the telephone and mail surveys. Because the set of airports used in this ACRP 02-35 survey was selected purposively for carrying out the mode experiment, the data are not suitable for developing a doseresponse relationship between noise exposure and annoyance.
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From page 31... ...
Table 10 Cochran-Mantel-Haenszel test statistics and p-values for testing difference between telephone and mail survey results Characteristic Statistic p-value Percent Highly Annoyed 1.12 0.29 Percent Male 2.92 0.09 Percent White non-Hispanic 1.45 0.23 Percent Age 50 and Over 14.97 < 0.0001 Percent with One Adult in Household 8.00 0.005 Table 11explores these demographic differences in more detail. Each entry in the table is the estimated percentage from the mail survey minus the estimated percentage from the telephone survey.
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