Adulthood temperament and educational attainment: A population-based cohort study. - Mullola, S.; Hintsanen, M.; Elovainio, M.; Pulkki-Råback, L.; Lipsanen, J.; Josefsson, K.; Lehtimäki, T.; Raitakari, O.T.; Keltikangas-Järvinen, L. (Learning & Instruction, 2015)