2026-10-15T08:52:10Z https://datacatalogue.cessda.eu/oai-pmh/v0/oai

7b4ff2e75de0d1f22d8620399498253f8d4e5741599d6f043a0ba50c14279293 2026-06-02T13:49:11Z language:enopenaire_data

10.7802/2098 https://search.gesis.org/research_data/SDN-10.7802-2098?lang=enhttps://search.gesis.org/research_data/SDN-10.7802-2098?lang=de Data for: The Optimism–Pessimism Short Scale–2 (SOP2): A Comprehensive Validation of the English-Language Adaptation Nießen, DésiréeNießen, DésiréePartsch, MelaniePartsch, MelanieGroskurth, KatharinaGroskurth, Katharina -- optimismpessimismoptimismpessimism en 2021 Dataset GermanyGermanyUnited Kingdom of Great Britain and Northern IrelandUnited Kingdom of Great Britain and Northern Ireland http://dbkapps.gesis.org/dbkoai/oai.asp oai:dbk.gesis.org:SDN/10.7802_2098 2023-03-11 ddi:codebook:2_5