= Survey Frame = A '''survey frame''' is a '''listing''' of records from which a sample is drawn. It is the '''universe''' for [[Statistics/SurveyInference|survey inference]]. <> ---- == Definition == AAPOR recognizes four types of frames: 1. List frames 2. Address-based frames 3. Random-digit dial telephone frames 4. Probability-based panel frames This does purposefully exclude the statistics of non-probability web panels. ---- == List Frames == A '''list frame''' is simply a list of specifically-named individuals. List frames are commonly taken as a complete population. Assumptions about over-coverage and under-coverage should be examined. ---- == ABS Frames == '''Address-based samples''' ('''ABS'''), or address-based frames, are lists of specific addresses without the specific individuals who are believed to live there. ---- == RDD Frames == '''Random-digit dial''' ('''RDD''') frames are randomly-selected telephone numbers. '''Dual-frame RDD''' ('''DFRDD''') refers to drawing two random samples for landline teleophone numbers and cellphone numbers, respectively. ---- == Probability-based Panels == ---- CategoryRicottone