Download User Manual - Respondent Driven Sampling

R D S
I N C O R P O R A T E D
Setting Options For Analysis
Before conducting an analysis, check the options that will be used. Choose "Options"
from the main window. The window of figure 2.4 will appear
FIGURE 2.4 RDSAT Options Window
Adjust Average Network Sizes
In a chain referral sample, those with more connections and larger personal network
sizes tend to be over-represented in the sample. This can potentially bias sample
estimates. The phenomenon can be corrected, however, and the RDS analysis tool
does so by default. To learn more about the methods used refer to: "Sampling and
Estimation in Hidden Populations Using Respondent-Driven Sampling" by Douglas
Heckathorn and Mathew Salganik. If you do not wish to adjust the average network
sizes for this sample bias, uncheck the flag.
Note: For NHBS, it is recommended to keep box checked.
Number of Re-samples
This is the number of times the data is re sampled to derive the bootstrap confidence
intervals. For accurate confidence intervals, keep this option at least the default value of
2500. For optimal accuracy, a number over 15,000 is recommended. Be aware,
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