Validity of A Web-based Measure of Borderline Personality Disorder: A Preliminary Study

Purpose: Early identification of borderline personality disorder (BPD) is important as timely interventions are beneficial and cost-effective. Unrecognized BPD not only results in suffering for individuals and their families, but also leads to considerable social costs. Although web-based measures have the potential to facilitate screening assessment of BPD for research and clinical purposes, little is known about whether the results of web-based measures of BPD are valid. This preliminary study aims to examine the validity of a web-based measure of BPD. 
Method: We analyzed data from five independent samples (N = 828 in total). 
Results: The web-based BPD measure had a consistent relationship with relevant variables, including trauma exposure, mental well-being, depression, post-traumatic stress, dissociation and psychotic features across samples. It was also strongly correlated with another BPD measure. The web-based BPD measure could discriminate between participants with and without BPD and the discrimination performance was excellent (area under the curve =.853). 
Discussion: The initial findings suggest that the web-based BPD measure used in the present study is valid and may be helpful for research and screening purposes, although it should be followed up with a more comprehensive assessment in clinical settings. Implications are discussed. Given the limitations in this study, further studies are needed.