• Transportation safety
• Safety culture
• Resilience/psycholgical hardiness

• Research methods and statistics

Academic article

• Bottomley, Jamison S.; Hystad, Sigurd William; Lindeman, Sari Kaarina (2025). Prolonged Grief in Siblings Bereaved by Drug- Related Death and Help Services Experiences. (external link)
• Reime, Monika Alvestad; O’Connor, Maja; Hystad, Sigurd William et al. (2024). Perceived social support and symptoms of prolonged grief after a drug-related death. (external link)
• Sanden, Sverre; Johnsen, Bjørn Helge; Hystad, Sigurd William (2024). EARLY INTERVENTION AND RETURN-TO-WORK PROCEDURES FOR A NAVY CREW AFTER SHIPWRECK— USING MODIFIED PROLONGED EXPOSURE TO REESTABLISH OPERATIONAL CAPACITY. (external link)
• Anker, Ella Aase; Sture, Svanhild Emilie Bøe; Hystad, Sigurd William et al. (2024). The effect of physical activity on anxiety symptoms among children and adolescents with mental health disorders: a research brief. (external link)
• Kvale, Gerd; Søfteland, Eirik; Jürgensen, Marte et al. (2024). First trans-diagnostic experiences with a novel micro-choice based concentrated group rehabilitation for patients with low back pain, long COVID, and type 2 diabetes: a pilot study. (external link)
• Reime, Monika Alvestad; Connor, Maja O’; Hystad, Sigurd William et al. (2024). Drug-Death Related Bereavement and Social Support. (external link)
• Wilhelmsen-Langeland, Ane; Børtveit, Tore; Jürgensen, Marte et al. (2024). Concentrated transdiagnostic and cross-disciplinary micro-choice based group treatment for patients with depression and with anxiety leads to lasting improvements after 12 months: a pilot study. (external link)
• Johnsen, Bjørn Helge; Hystad, Sigurd William (2023). Hardiness and mental health during naval deployment: The relation is mediated by social processes and not by self-regulatory processes. (external link)
• Johnsen, Bjørn Helge; Nilsen, Andreas Aalstad; Hystad, Sigurd William et al. (2023). Selection of Norwegian police drone operators: an evaluation of selected cognitive tests from “The Vienna Test System". (external link)
• Olsen, Olav Kjellevold; Hystad, Sigurd William; Bøe, Hans Jakob et al. (2023). Long-term post traumatic growth after moral-and victim-traumas among Norwegian UN military peacekeepers: the impact of emotional distress and leadership.. (external link)
• Mattingsdal, Jostein; Espevik, Roar; Johnsen, Bjørn Helge et al. (2023). Exploring Why Police and Military Commanders Do What They Do: An Empirical Analysis of Decision-Making in Hybrid Warfare. (external link)
• Titlestad, Kristine Berg; Kristensen, Pål; O'Connor, Maja et al. (2022). Paths to positive growth in parents bereaved by drug-related death: A mixed-method study. (external link)
• Espevik, Roar; Johnsen, Bjørn Helge; Hystad, Sigurd William (2022). Police Dyads Within an Operational Simulation: an Empirical Test of the Research Propositions Made in the “Big Five” Teamwork Approach. (external link)
• Johnsen, Bjørn Helge; Brattebø, Guttorm; Espevik, Roar et al. (2022). The Effect of Complexity of Ambulance Missions on Shared Mental Models in Virtual Teams. (external link)
• Danielsen, Yngvild Sørebø; Skjåkødegård, Hanna Flækøy; Nybakk, Marit Mongstad et al. (2022). Objectively measured physical activity among treatment seeking children and adolescents with severe obesity and normal weight peers. (external link)
• Skjåkødegård, Hanna Flækøy; Hystad, Sigurd William; Bruserud, Ingvild Særvold et al. (2022). Perceived barriers in family-based behavioural treatment of paediatric obesity – Results from the FABO study. (external link)
• Kvale, Gerd; Wilhelmsen-Langeland, Ane; Jürgensen, Marte et al. (2022). Concentrated transdiagnostic and cross-disciplinary group treatment for patients with depression and with anxiety: a pilot study. (external link)
• Frisk, Bente; Njøten, Kiri Lovise; Aarli, Bernt Bøgvald et al. (2022). A novel concentrated, interdisciplinary group rehabilitation program for patients with chronic obstructive pulmonary disease: Protocol for a nonrandomized clinical intervention study. (external link)
• Skjåkødegård, Hanna Flækøy; Conlon, Rachel P. K.; Hystad, Sigurd William et al. (2022). Family-based treatment of children with severe obesity in a public healthcare setting: Results from a randomized controlled trial. (external link)
• Anker, Ella Aase; Sande, Thea; Arefjord, Kjersti Jorunn et al. (2022). The association between pain-related factors and psychological distress in patients with temporomandibular disorder. (external link)
• Thomassen, Ådne Gabriel; Johnsen, Bjørn Helge; Hystad, Sigurd William et al. (2021). Avoidance coping mediates the effect of hardiness on mental distress symptoms for both male and female subjects. (external link)
• Kvale, Gerd; Frisk, Bente; Jürgensen, Marte et al. (2021). Evaluation of novel concentrated interdisciplinary group rehabilitation for patients with chronic illnesses: Protocol for a nonrandomized clinical intervention study. (external link)
• Hagen, Kristen; Nordahl, Håkon; Launes, Gunvor et al. (2021). Does Concentrated Exposure Treatment for Obsessive-Compulsive Disorder Improve Insomnia Symptoms? Results From a Randomized Controlled Trial. (external link)
• Olsen, Olav Kjellevold; Johansen, Rino Bandlitz; Hystad, Sigurd William (2021). Do Ideals Differ and Matter? An Investigation of Authentic Leadership Ideals Among Norwegian Military Officers Across Generations – and Its Impact on Leadership Practice. (external link)
• Søbstad, Jenni Hellesøy; Pallesen, Ståle; Bjorvatn, Bjørn et al. (2021). Predictors of turnover intention among Norwegian nurses: A cohort study. (external link)
• Sætrevik, Bjørn; Hystad, Sigurd William (2021). Ship Leadership, Situation Awareness, and Crew Safety Behaviour-Preregistered Replications in Two Survey Datasets. (external link)
• Skjåkødegård, Hanna Flækøy; Danielsen, Yngvild Sørebø; Frisk, Bente et al. (2020). Beyond sleep duration: Sleep timing as a risk factor for childhood obesity. (external link)
• Hystad, Sigurd William; Johnsen, Bjørn Helge (2020). The dimensionality of the 12-item general health questionnaire (GHQ-12): Comparisons of factor structures and invariance across samples and time. (external link)
• Nordmo, Morten; Hystad, Sigurd William; Sanden, Sverre et al. (2020). Mental health during naval deployment: The protective role of family support. (external link)
• Olsen, Olav Kjellevold; Heesch, Philip van; Søreide, Christian et al. (2020). Trust After Just 45 Seconds? An Experimental Vignette Study of How Leader Behavior and Emotional States Influence Immediate Trust in Strangers. (external link)
• Kvale, Gerd; Hansen, Bjarne; Hagen, Kristen et al. (2020). Effect of D-Cycloserine on the Effect of Concentrated Exposure and Response Prevention in Difficult-to-Treat Obsessive-Compulsive Disorder: A Randomized Clinical Trial. (external link)
• Herrebrøden, Henrik; Grotterød, Audun; Hystad, Sigurd William (2019). External distractions and motor performance: A field study exploring the effects of mental toughness and extraversion on golf putting. (external link)
• Holm, Silje Elisabeth Hasmo; Hansen, Bjarne; Kvale, Gerd et al. (2019). Dispositional resilience in treatment‐seeking patients with obsessive‐compulsive disorder and its association with treatment outcome. (external link)
• Sandvik, Asle Makoto; Gjevestad, Espen Svendsen; Aabrekk, Einar et al. (2019). Physical fitness and psychological hardiness as predictors of parasympathetic control in response to stress: a Norwegian police simulator training study. (external link)
• Launes, Gunvor; Hagen, Kristen; Sunde, Tor et al. (2019). A randomized controlled trial of concentrated ERP, self-help and waiting list for obsessive- compulsive disorder: The Bergen 4-Day Treatment. (external link)
• Bekkeheien, Hilde Aarrestad; Reigstad, Rakel Drønen; Dyregrov, Kari et al. (2019). Sammenhengen mellom alkoholbruk og forlenget sorg hos nære etterlatte etter terrorangrepet på Utøya i 2011.. (external link)
• Myrseth, Helga; Hystad, Sigurd William; Säfvenbom, Reidar et al. (2018). Perception of specific military skills – the impact of perfectionism and self-efficacy. (external link)
• Olsen, Olav Kjellevold; Harris, Anette; Hystad, Sigurd William (2018). God under press. En operasjonalisering av moralsk robusthet i krevende operative Situasjoner. (external link)
• Thomassen, Ådne Gabriel; Hystad, Sigurd William; Johnsen, Bjørn Helge et al. (2018). The effect of hardiness on PTSD symptoms: A prospective mediational approach. (external link)
• Sætrevik, Bjørn; Hystad, Sigurd William (2017). Situation awareness as a determinant for unsafe actions and subjective risk assessment on offshore attendant vessels. (external link)
• Herrebrøden, Henrik; Sæbø, Espen Sand; Hystad, Sigurd William (2017). Are Auditory Distractions Disturbing and Detrimental to the Performance of Expert Golfers? A Field Experiment. (external link)
• Sandhåland, Hilde; Oltedal, Helle Asgjerd; Hystad, Sigurd William et al. (2017). Effects of leadership style and psychological job demands on situation awareness and the willingness to take a risk: A survey of selected offshore vessels. (external link)
• Wågø, Sunniva Skagen; Byrkjedal, Ida Kristiansen; Sinnes, Hanna Marie et al. (2017). Social support and complicated grief : a longitudinal study on bereaved parents after the Utøya terror attack in Norway. (external link)
• Bergheim, Kjersti; Eid, Jarle; Hystad, Sigurd William et al. (2017). Does psychological capital moderate the relationship between worries about accidents and sleepiness?. (external link)
• Hystad, Sigurd William; Nielsen, Morten Birkeland; Eid, Jarle (2017). The impact of sleep quality, fatigue and safety climate on the perceptions of accident risk among seafarers [L'impact de la qualite du sommeil, de la fatigue et du climat de securite sur la perception des risques d'accidents chez les marins]. (external link)
• Nordmo, Morten; Hystad, Sigurd William; Sanden, Sverre et al. (2017). The effect of hardiness on symptoms of insomnia during a naval mission. (external link)
• Johnsen, Bjørn Helge; Espevik, Roar; Saus-Rose, Evelyn et al. (2017). Hardiness as a Moderator and Motivation for Operational Duties as Mediator: the Relation Between Operational Self-Efficacy, Performance Satisfaction, and Perceived Strain in a Simulated Police Training Scenario. (external link)
• Bartone, Paul T.; Johnsen, Bjørn Helge; Eid, Jarle et al. (2017). Hardiness, avoidance coping and risky drinking in stress-exposed military personell: A mediation study. (external link)
• Hystad, Sigurd William; Olaniyan, Oyeniyi Samuel; Eid, Jarle (2016). Safe travel: Passenger assessment of trust and safety during seafaring. (external link)
• Hystad, Sigurd William; Eid, Jarle (2016). Sleep and fatigue among seafarers: the role of environmental stressors, duration at sea and Psychological Capital. (external link)
• Olaniyan, Oyeniyi Samuel; Hystad, Sigurd William (2016). Employees’ psychological capital, job satisfaction, insecurity, and intentions to quit: The direct and indirect effects of authentic leadership [Capital psicológico, satisfacción laboral, inseguridad e intención de abandono de los trabajadores: efectos directos e indirectos del liderazgo auténtico]. (external link)
• Sandhåland, Hilde; Oltedal, Helle Asgjerd; Hystad, Sigurd William et al. (2015). Distributed situation awareness in complex collaborative systems: A field study of bridge operations on platform supply vessels. (external link)
• Hystad, Sigurd William; Olsen, Olav Kjellevold; Espevik, Roar et al. (2015). On the stability of psychological hardiness: A three-year longitudinal study. (external link)
• Sandvik, Asle Makoto; Hansen, Anita Lill; Hystad, Sigurd William et al. (2015). Psychopathy, anxiety, and resiliency – Psychological hardiness as a mediator of the psychopathy–anxiety relationship in a prison setting. (external link)
• Bartone, Paul T.; Eid, Jarle; Hystad, Sigurd William et al. (2015). Psychological Hardiness and Avoidance Coping Are Related to Risky Alcohol Use in Returning Combat Veterans. (external link)
• Thomassen, Ådne Gabriel; Hystad, Sigurd William; Johnsen, Bjørn Helge et al. (2015). The combined influence of hardiness and cohesion on mental health in a military peacekeeping mission: A prospective study. (external link)
• Nielsen, Morten Birkeland; Hystad, Sigurd William; Eid, Jarle (2015). The Brief Norwegian Safety Climate Inventory (Brief NORSCI) - Psychometric properties and relationships with shift work, sleep, and health. (external link)
• Borgersen, Hanne Cecilie; Hystad, Sigurd William; Larsson, Ulf Gerry et al. (2014). Authentic Leadership and Safety Climate Among Seafarers. (external link)
• Hystad, Sigurd William; Mearns, Kathryn; Eid, Jarle (2014). Moral disengagement as a mechanism between perceptions of organisational injustice and deviant work behaviours. (external link)
• Hystad, Sigurd William; Bartone, Paul T.; Eid, Jarle (2014). Positive organizational behavior and safety in the offshore oil industry: Exploring the determinants of positive safety climate. (external link)
• Hoff, Helge Andreas; Rypdal, Knut; Hystad, Sigurd William et al. (2014). Cross-language consistency of the comprehensive assessment of psychopathic personality (CAPP) model. (external link)
• Bergheim, Kjersti; Eid, Jarle; Hystad, Sigurd William et al. (2013). The Role of Psychological Capital in Perception of Safety Climate Among Air Traffic Controllers. (external link)
• Nielsen, Morten Birkeland; Eid, Jarle; Hystad, Sigurd William et al. (2013). A brief safety climate inventory for petro-maritime organizations. (external link)
• Hystad, Sigurd William; Bye, Hege Høivik (2013). Safety behaviours at sea: The role of personal values and personality hardiness. (external link)
• Sandvik, Asle Makoto; Bartone, Paul T.; Hystad, Sigurd William et al. (2013). Psychological hardiness predicts neuroimmunological responses to stress. (external link)
• Johnsen, Bjørn Helge; Hystad, Sigurd William; Bartone, Paul et al. (2013). Hardiness Profiles: Defining Clusters of the Dispositional Resilience Scale and their Relation to Soldiers’ Health. (external link)
• Hystad, Sigurd William; Saus-Rose, Evelyn; Sætrevik, Bjørn et al. (2013). Fatigue in seafarers working in the offshore oil and gas re-supply industry: effects of safety climate, psychosocial work environment and shift arrangement. (external link)
• Johnsen, Bjørn Helge; Bartone, Paul T; Sandvik, Asle Makoto et al. (2013). Psychological hardiness predicts success in a Norwegian armed forces border patrol selection course. (external link)
• Hystad, Sigurd William (2012). Exploring gender equivalence and bias in a measure of psychological hardiness. (external link)
• Bartone, Paul T; Hystad, Sigurd William; Eid, Jarle et al. (2012). Psychological hardiness and coping style as risk/resilience factors for alcohol abuse. (external link)
• Hystad, Sigurd William; Bye, Hege Høivik (2012). Dispositional pessimism but not optimism is related to sickness absence caused by musculoskeletal symptoms. (external link)
• Olsen, Olav Kjellevold; Myrseth, Helga; Eidhamar, Are et al. (2012). Psychometric properties of a four-component Norwegian organizational justice scale. (external link)
• Hystad, Sigurd William; Eid, Jarle; Brevik, John Ivar (2011). Effects of psychological hardiness, job demands, and job control on sickness absence: a prospective study. (external link)
• Hystad, Sigurd William; Eid, Jarle; Laberg, Jon Christian et al. (2011). Psychological hardiness predicts admission into Norwegian military officer schools. (external link)
• Hystad, Sigurd William; Eid, Jarle; Hansen, Anita Lill et al. (2010). An exploratory study of differences in emotional intelligence in U.S. and Norwegian undergraduate students. (external link)
• Sandvik, Asle Makoto; Gjeldnes, Rune; Hystad, Sigurd William et al. (2010). Psykologisk hardførhet predikerer soldaters motivasjonsutvikling under en 200 km lang skimarsj. (external link)
• Hystad, Sigurd William; Eid, Jarle; Johnsen, Bjørn Helge et al. (2010). Psychometric properties of the revised Norwegian dispositional resilience (hardiness) scale. (external link)
• Molde, Helge; Hystad, Sigurd William; Myrseth, Helga et al. (2010). Evaluating lifetime NODS using Rasch modelling. (external link)
• Hystad, Sigurd William; Eid, Jarle; Helge, Johnsen Bjørn et al. (2009). Psykologisk hardførhet: En revidert versjon av den norske "Hardiness"-skalaen. (external link)
• Molde, Helge; Pallesen, Ståle; Bartone, Paul T et al. (2009). Prevalence and correlates of gambling among 16 to 19-year old adolescents in Norway. (external link)
• Hystad, Sigurd William; Eid, Jarle; Laberg, Jon Christian et al. (2009). Academic Stress and Health: Exploring the Moderating Role of Personality Hardiness. (external link)

Academic lecture

• Skjåkødegård, Hanna Flækøy; Danielsen, Yngvild Sørebø; Hystad, Sigurd William et al. (2024). Family-based behavioral treatment of children with obesity – Results from the FABO study. (external link)
• Reime, Monika Alvestad; Dyregrov, Kari; Hystad, Sigurd William et al. (2024). Drug-death bereavement and social support – can AI supplement traditional informal network support?. (external link)
• Dyregrov, Kari; Hystad, Sigurd William; O’Connor, Maja (2024). Drug-death bereavement and social support – can AI supplement traditional informal network support?. (external link)
• Sandvik, Asle Makoto; Gjevestad, Espen Svendsen; Einar, Aabrekk et al. (2018). Physical fitness and psychological hardiness as predictors of autonomic self-regulation during stress. A Norwegian police simulator training study. (external link)
• Eid, Jarle; Brevik, John Ivar; Hystad, Sigurd William et al. (2011). Evaluation of Psychological Hardiness and Coping Style as Risk/Resilience Factors for Health Risk Behaviour. (external link)
• Hystad, Sigurd William (2011). Psychological Hardiness from a Scandinavian Perspective. (external link)
• Eid, Jarle; Bergheim, Kjersti; Laberg, Jon Christian et al. (2009). Authentic leadership and psychological capiral: Does it influence safety climate in high reliability organizations?. (external link)

Poster

• Titlestad, Kristine Berg; Kristensen, Pål; O'Connor, Maja et al. (2022). Kan traumatiske hendelser også gi grobunn for vekst og personlig utvikling?. (external link)
• Skjåkødegård, Hanna Flækøy; Juliusson, Pétur Benedikt; Bruserud, Ingvild Særvold et al. (2021). Barriers experienced in Family-based cognitive behavioural treatment of childhood obesity and pre-mature drop-out from treatment. (external link)
• Olaniyan, Oyeniyi Samuel; Hystad, Sigurd William (2017). Authentic leadership roles in employees job satisfaction, job insecurity, and intentions to quit the organisation.. (external link)
• Bartone, Paul T.; Eid, Jarle; Hystad, Sigurd William et al. (2013). Low psychological hardiness and avoidance coping predict alcohol abuse in the military. (external link)
• Bergheim, Kjersti; Hystad, Sigurd William; Eid, Jarle (2010). Psychological Capital and Safety Climate: A study of Norwegian Air Traffic Controllers. (external link)
• Bartone, Paul T; Eid, Jarle; Hystad, Sigurd William et al. (2009). Evaluatin a new screening approach to identify soldiers at high-risk for alcohol abuse. (external link)
• Hystad, Sigurd William; Eid, Jarle; Laberg, Jon Christian et al. (2008). Operational Psychology. (external link)
• Bartone, Paul T; Eid, Jarle; Hystad, Sigurd William et al. (2008). Norwegian adaptation of the DRS- Dispositional Resilience Scale for measuring hardiness under stress. (external link)
• Hystad, Sigurd William; Eid, Jarle; Brevik, John Ivar et al. (2008). Measurement equivalence in Norwegian and American Hardiness measures. (external link)
• Bartone, Paul T.; Eid, Jarle; Hystad, Sigurd William et al. (2008). Norwegian adaption of the DRS - Dispositional Resiliences Scale for measuring hardiness under stress. (external link)
• Bartone, Paul T; Eid, Jarle; Johnsen, Bjørn Helge et al. (2007). Cross cultural adaptation of the DRS-15 Dispositional Resilience Scale (psychological hardiness). (external link)
• Bartone, Paul T.; Johnsen, Bjørn Helge; Eid, Jarle et al. (2007). DIF - Differential Item Functioning Analysis of Norwegian and American Hardiness Measures. (external link)

Academic literature review

• Olaniyan, Oyeniyi Samuel; Hetland, Hilde; Hystad, Sigurd William et al. (2020). Lean on me: A scoping review of the essence of workplace support among child welfare workers. (external link)

Academic chapter/article/Conference paper

• Eid, Jarle; Nielsen, Morten Birkeland; Hystad, Sigurd William (2019). Sikkerhetsklima. (external link)
• Johnsen, Bjørn Helge; Bartone, Paul T.; Hystad, Sigurd William (2015). Personlighetspsykologi og operativ psykologi: Hardførhet som en relevant personlighetsdimensjon. (external link)
• Bartone, Paul T; Hystad, Sigurd William (2010). Increasing mental hardiness for stress resilience in operational settings. (external link)

Chapter

• Hystad, Sigurd William; Johnsen, Bjørn Helge (2019). Resiliens- en sentral egenskap hos operatøren. (external link)
• Bartone, Paul T; Eid, Jarle; Hystad, Sigurd William (2016). Training hardiness for stress resilience. (external link)

Doctoral dissertation

• Sandhåland, Hilde; Oltedal, Helle Asgjerd; Hystad, Sigurd William et al. (2017). Safety on board offshore vessels: A study of shipboard factors and situation awareness. (external link)
• Hystad, Sigurd William (2011). Measuring Psychological Resiliency: Validation of an Adapted Norwegian Hardiness Scale. (external link)

Reader opinion piece

• Bye, Hege Høivik; Hystad, Sigurd William (2015). Misvisende om kjønn og publikasjonspoeng. (external link)

Masters thesis

• Holmen, Ingebjørg Lingaas; Myren, Anne Marte Nordlie; Danielsen, Yngvild Sørebø et al. (2015). Sammenhengen mellom psykisk helse i ungdomsalder og vektstatus i ung voksen alder. En 11 års oppfølgingsstudie fra Helseundersøkelsen i Nord-Trøndelag (HUNT).. (external link)

See a complete overview of publications in Cristin.