Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
Instability refers to a lack of consistency or predictability in moods, behavior, self-image, and functioning. It is often associated with personality disorders characterized by frequent and intense shifts in these areas.
Impulsivity is a tendency to act without thinking about potential consequences or considering alternative courses of action.
Identity Disturbance: Identity disturbance involves an unstable sense of self and an unclear understanding of one's values, goals, beliefs, and preferences.