Impact of COVID-19 on the Self-Report Assessment of Obsessive-Compulsive Disorder.

Background The COVID-19 pandemic and subsequent guidelines have had a substantial effect on social norms. This likely affected self-report assessment of psychopathology, namely those that assess obsessive-compulsive tendencies routinely used to screen for obsessive-compulsive disorder (OCD). It was hypothesized that self-report assessment of OCD likely produces inflated, non-discriminating scale scores. Methods Data collection occurred prior to the COVID-19 pandemic with the aim of validating a new psychological test; however, data collection was abruptly halted in March 2020. Data collection was allowed to resume in the latter half of the year. Both groups were racio-ethnically and gender diverse. Results Self-report measures of OCD yielded inflated scores. For instance, the total obsessive-compulsive inventory-revised (OCI-R) average score of all participants went from normative levels prior to COVID-19 (M = 13.69, SD = 10.32) to an average score that was above the clinical cut-off on the OCI-R (M = 32.89; SD = 12.95) during the pandemic (t(135) = 9.66, p < 0.001, Cohen's d = 1.66). Conclusions OCD-related scale scores likely produced false positives in research and practice due to COVID-19 health guidelines put in place to protect against infection that may otherwise be considered contamination fears on OCD measures.