can complex sampling be ignored can complex sampling be ignored can complex sampling be ignored can the study design be ignored is observation weights used in a patient centered survey can a complex sampling be ignored can complex sampling be ignored can you ignore a complex sampling for a systematic survey? are sample weights considered exploratory can the complexity of the sampling design be ignored is complex sampling required for patient-centered studies can observation weights be used for a patient centered analysis can a complex sampling design be ignored in good faith? what type of model is often used in exploratory design? is a multistage sampling considered exploratory which design is considered exploratory and not confirmatory? why use observation weights when conducting a random sample analysis in a multistage stratified design can you ignore complexity sample design why is observation weight used in exploratory analysis? can a complex sampling be ignored for exploratory data