Editorial Perspective: Prescribing measures: unintended negative consequences of mandating standardized mental health measurement

In July 2020, two of the largest funders of mental health research worldwide – the National Institute of Mental Health (NIMH) and the Wellcome Trust – announced plans to standardize mental health measurement. Specifically, obtaining funding for research related to depression and anxiety will be conditional on using four specific measures. While we agree that there are obvious benefits to standardizing mental health measurement, some of which are discussed in the announcement by NIMH and Wellcome, here we focus on potential unintended negative consequences of this initiative: A. Lacking transferability across settings: scales were developed for specific settings (e.g. community, clinic) and purposes (e.g. intervention studies), and their properties might not be easily transferable between settings. B. Narrowing the scope of inquiry: individuals experience mental health difficulties in wide‐ranging ways, and the narrow scope of the proposed scales risks limiting important insights for research and treatments. C. Lowering the threshold for robust evidence: empirical findings limited to a specific imperfect measure are less robust than if such evidence is (re)produced across multiple scales. D. Creating a two‐tiered mental health science: arbitrarily conferring gold standard status on some imperfect measures over others will create an artificial two‐tiered system leading to an impoverishment of mental health research. Recommendations for mitigating these negative consequences include the following: mandating a wider set of measures that have been validated for specific populations and research purposes, funding research assessing the measurement properties of scales across settings and purposes, stressing the limitations of mandated measures to avoid en masse application and replacement of measures across studies and health systems and creating speed bumps to ensure that any widespread adoption of mandated measures does not result in impoverishment of mental health science