Adjustment disorders are among the most commonly diagnosed mental health disorders in both civilian and military clinical settings. Despite their high prevalence, adjustment disorders have received little research attention. The many gaps in our understanding of this group of disorders hinder the development of adequate, evidence-based treatment protocols. This study utilizes a systematic methodology to identify and prioritize research gaps in adjustment disorders. We used authoritative source reports to identify gaps in research domains from foundational science to services research. Subject-matter experts conducted literature searches to substantiate and refine research gaps, and stakeholders assessed the importance and impact of this work for researchers and policy-makers. We identified 254 possible research-needs statements, which were ultimately reduced to 11 final, prioritized research gaps. Two gaps addressed prevention and screening and three addressed treatment and services research. Six gaps addressed foundational science, epidemiology, and etiology research domains, highlighting the need for basic research. Until some of the basic science questions are resolved (e.g., diagnostic clarity, valid screening, and assessment measures) about adjustment disorders, we may not be able to develop adequate evidencebased interventions for the disorders, and it will be difficult to understand the trajectory of these disorders throughout treatment.
Impact StatementConsiderable gaps in the knowledge on adjustment disorders hinder the development of evidence-based treatments and impact practices of clinicians, policy-makers, and researchers involved in organized care settings. The current effort synthesizes existing research and distills 254 research-needs statements into 11 high-priority gaps in the adjustment disorders literature. Findings highlight the need for targeted screening and assessment tools so that evidence-informed prevention and interventions can be developed.