Sampling size determination

Finite Population Correction(FPC) = correction for the overestimation of the variance of a population parameter. When n >= 0.1N. FPC is sqrt[(N-n)/(N-1)]. Have to multiple standard deviation by this to adjust.

Sampling Distribution = distribution of sample statistic values computed for each possible sample which could be drawn from the target population under a specific sampling scheme

Confidence intervals are supposed to cover or span the true population parameter

Incidence rate is the rate of occurrence or percentage of persons eligible for the study

Completion rate is the number of eligible people who complete the survey itself.

Initial Sample Size = Final Sample Size / (Completion Rate * Incidence Rate)

Adjusting for Nonresponse
 * Adjusting for nonresponse can be done through = imputation, weighting, replacement, substitution, past data(trend), subjective(researcher) estimate
 * Reducing Refusals
 * Easy questions
 * Short questionnaires
 * Pilot tested questionnaires
 * Prior notification
 * Incentives
 * Follow-up
 * Reducing Not at Homes
 * Contacting people during off hours
 * Using methods other than phone
 * Follow-up
 * Call back