Having viewed some of the highly edited videotaped material of Terri Schiavo and having seen other patients in a persistent vegetative state, I am not surprised that family members and others unfamiliar with this condition would interpret some of her apparent alertness and movement as meaningful.
A Likert Scale is a type of psychometric scale frequently used in psychology questionnaires. It was developed by and named after organizational psychologist Rensis Likert. Self-report inventories are one of the most widely used tools in psychological research.
A likert scale has different rating scales usually from 1 to 5 that have been developed to measure attitudes of people directly. A responder can express his or her personal opinion or views about something by selecting a particular number or rating scale available in the liker scale.