Development and Validation of a Multidimensional Capability for Suicide Scale: A Multi-Sample Investigation.

Area of Science:

• Psychology
• Psychiatry
• Clinical Psychology

Background:

• Suicidal capability is crucial for distinguishing between suicidal ideation and attempts.
• Existing measures of suicidal capability often focus on single aspects, neglecting theoretical subcomponents.

Purpose of the Study:

• To develop and validate a novel Multidimensional Capability for Suicide Scale (MCSS).
• To assess distinct facets of suicidal capability, including access to means, pain tolerance, fearlessness of death, and perceived ability to self-harm.

Main Methods:

• The MCSS was developed and tested across three clinically relevant samples (N=1290).
• Participants included individuals with elevated psychopathology, current suicidal ideation, or a history of suicide attempts.
• A 16-item scale with four subscales was evaluated for model fit and construct validity.

Main Results:

• The 16-item MCSS demonstrated excellent model fit across all samples.
• The scale's four subscales (access to means, pain tolerance, fearlessness of death, perceived ability to self-harm) showed distinct associations with suicide risk factors.
• The MCSS provides a comprehensive measure of theorized suicidal capability components.

Conclusions:

• The MCSS is a reliable and valid instrument for assessing multidimensional suicidal capability.
• This scale offers an improved tool for suicide risk assessment, intervention, and prevention.
• The MCSS facilitates further research into the nuanced aspects of suicidal capability.