Study Protocols Published on Open Science Framework 

Brehaut E, Neupane D, Levis B, Wu Y, Ioannidis JPA, Benedetti A, Thombs BD, and the and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Optimal cutoff selection in depression screening studies using the PHQ-9, EPDS, and HADS. Open Science Framework. September 15, 2020. https://osf.io/fxhyw/

Bhandari PM, Levis B, Negeri Z, Wu Y, Ioannidis JPA, Shrier I, Cuijpers P, Thombs BD, Benedetti A, and the DEPRESsion Screening Data (DEPRESSD) EPDS Collaboration. Estimating confidence intervals for the Youden’s J optimal cutoff and correcting for optimism in associated accuracy estimates: Protocol for an analysis using individual participant data of the Edinburgh Postnatal Depression Scale. Open Science Framework. May 2, 2020. https://osf.io/5gqth/

Harel D, Levis B, Ishihara M, Levis AW, Thombs, BD, Benedetti A, and the DEPRESsion Screening Data (DEPRESSD) EPDS Collaboration. A Protocol for Shortening the Edinburgh Postnatal Depression Scale (EPDS) using Optimal Test Assembly Methods. Open Science Framework. November 14, 2019. https://osf.io/3cepr/

Lyubenova A, Neupane D, Levis B, Wu Y, Benedetti A, Thombs BD and the DEPRESsion Screening Data (DEPRESSD) Collaboration.  Depression prevalence based on the EPDS compared to Structured Clinical Interview for DSM classification: protocol for an individual participant data meta-analysis. Open Science Framework. July 2, 2019. https://osf.io/yw9u8/ 

Neupane D, Levis B, Bhandari PM, Benedetti A, Thombs BD and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Selective cutoff reporting in studies of diagnostic test accuracy: protocol for a comparison of meta-analysis of published accuracy estimates versus meta-analysis of individual participant data of the Edinburgh Postnatal Depression Scale. Open Science Framework. March 11, 2019. https://osf.io/z5sjp/ 

Bhandari PM, Levis B, Neupane D, Benedetti A, Thombs BD and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Evaluation of bias in diagnostic accuracy estimates due to data-driven cutoff selection: protocol for a simulation study using individual participant data from 50 studies on the diagnostic accuracy of the Edinburgh Postnatal Depression Scale (EPDS). Open Science Framework. February 23, 2019. https://osf.io/854zn/ 

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