Hammon, AngelinaAngelinaHammonZinn, SabineSabineZinn2025-04-232025-04-2320240020-87790306-77341751-5823https://fis.uni-bamberg.de/handle/uniba/107715engValidating an Index of Selection Bias for Proportions in NonâProbability Samplesarticle10.1111/insr.12590https://onlinelibrary.wiley.com/doi/pdf/10.1111/insr.12590