• On the stability of psychological hardiness: a three-year longitudinal study 

      Hystad, Sigurd William; Olsen, Olav Kjellevold; Espevik, Roar; Säfvenbom, Reidar (Journal article; Peer reviewed, 2015-05)
      More than 30 years of research has established psychological hardiness as an important individual resiliency resource. One important question still remaining is whether psychological hardiness can be trained. The present ...