To suddenly go down onto the ground or towards the ground without intending to or by accident.

The spread of a communicable disease among a defined number of people.

An occasion where people's personal safety and wellbeing are put at risk. this is a broad term that includes adverse events.

Physical trauma to the body by an external force that needs immediate hospital or medical treatment.

Hostile behaviour and/or attitude towards an individual or group that results in verbal and/or physical attacks.

Worry and anxiety that make a person feel uneasy.

A descriptive assessment that is conducted as an initial part of a complete functional behaviour assessment.

Feelings of uneasiness, apprehension, or fear which may be caused by a perceived sense of threat or danger, or which may have no apparent cause.

A psychological intervention that applies empirical approaches based upon the principles of respondent and operant conditioning to change behaviour.

A psychotherapeutic intervention primarily used to eliminate or reduce maladaptive behaviour in children or adults.

A general sense of uncertainty about what is happening to a person or what they are supposed to do.

Actions taken to address a person's agitated or heightened behaviour in order to relieve their stress or return them to baseline.