Functional behavior assessment (FBA) is defined as a process of identifying the events in the environment that consistently precede and follow challenging behavior in persons with developmental disabilities.
Components of functional assessment - Vision and hearing, mobility, continence, nutrition, mental status (cognition and affect), affect, home environment, social support, ADL-IADL. ADL's (activities of daily living) are basic activities such as transferring, ambulating, bathing, etc.
A functional assessment process is necessary to help understand an individual's behaviour of concern. It is essential to identifying appropriate and helpful teaching strategies and interventions that will support the individual in achieving the quality of life they desire