The LAS-SF is used to measure risk behavior and suicide proneness along a continuum ranging from positive (no risk) to negative (high risk). The scale identifies both subtle and overtly suicidal behaviors. Four domains of behavior are represented within the instrument: death/life related, health/illness related, injury related, and self related. Based on the original 96 item LAS, the short form version is more accessible in some settings or with certain populations. The instrument consists of 24 items in true/false format.