Index of Spousal Abuse

The Index of Spouse Abuse (ISA) is a 30-item self-report scale developed to measure the severity of physical and non-physical aggression inflicted on a woman by her spouse or partner. The ISA has become a popular measure in medical settings.[1] It was created from the conflict tactics scale, one of the earliest instruments used to identify violence between partners by measuring interpersonal aggression, in which 19 items pertain to non-physical abuse and 11 pertain to physical abuse. Each item is rated on a scale from 1 (never) to 5 (very frequently). Both of these scales are part of assessing the cycle of abuse.