@article{https://doi.org/10.6102/zis322_exz,
doi = {10.6102/zis322_exz},
url = {http://zis.gesis.org/DoiId/10.6102/zis322_exz},
author = {Nießen, D., Groskurth, K., Kemper, C. J., Rammstedt, B., & Lechner, C. M.},
language = {en},
title = {Optimism–Pessimism Short Scale–2 (SOP2)},
journal = {Zusammenstellung sozialwissenschaftlicher Items und Skalen (ZIS)},
publisher = {ZIS - GESIS Leibniz Institute for the Social Sciences},
year = {2022}
}