The psychometric properties of the Collaborative Assessment and Management of Suicidality rating scale: CORONA et al.

OBJECTIVE: The CAMS Rating Scale (CRS) is an adherence measure for the Collaborative Assessment and Management of Suicidality (CAMS), a suicide-specific clinical intervention. This study examined the ability of the CRS to assess adherence to CAMS. METHODS: Video-recorded therapy sessions of clinicians delivering either CAMS or Enhanced Care-As-Usual (E-CAU) were rated with the CRS. These ratings (N = 98) were used to evaluate criterion validity, internal consistency, and factor structure. RESULTS: Criterion validity and factor analyses did not support the organization of the CRS into its current subscales. Furthermore, the identified factor model and item-level statistics revealed weak CRS items. Finally, internal consistency was higher among CAMS clinicians than among clinicians delivering E-CAU. CONCLUSION: These results establish the CRS as a measure that can effectively assess the adherence to CAMS in its current form. Potential revisions to future iterations of the CRS are discussed.