Research Methods for Understanding Aircraft Noise Annoyances and Sleep Disturbance (2014) / Chapter Skim
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15 Sleep Disturbance Study Plan The following paragraphs describe the two suggested research protocols. These are followed by the procedures related to the selection of measurement sites, the selection of study participants, acoustical measurements, and supplementary data gathered will be outlined.
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are used than those commonly applied (1-2 samples/min) in order to allow for an event-related analysis.
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et al.[23] discuss this the following way: "Situations where the subject was already awake before playback of the ANE started (10.3% of all events)
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Figure 12 Lnight contours 40 to >55 dB, based on historical data from Newark International Airport. The sampled noise regions will also be classified according to additional criteria (e.g., average family income per household)
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15.3 Assessment of the Consequences of Aircraft Noise-Induced Sleep Disturbance In order to minimize methodological expense (and thus maximize response rates and generalizability of results) , the assessment of the consequences of aircraft noise-induced sleep disturbance will be restricted to brief morning questionnaires (see Appendix I)
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Subject has no active alcohol or drug addiction. Subject has no history of cardiac arrhythmia (ECG algorithm not validated in arrhythmia)
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Figure 13 Effects of Subject and Cumulative Event Numbers on Confidence Interval and Statistical Power For this proposed study, the preference should be given to increase the number of subjects, as we are more interested in getting precise information on a representative group of subjects than very precise information on a smaller group of subjects. The investigated number of subjects and number of nights per subject should be chosen in a way that at least 80% power is achieved even with some attrition or a lower than expected number of noise events per night.
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