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.
Categories of response. Generally, a Likert scale presents the respondent with a statement and asks the respondent to rate the extent to which he or she agrees with it. Variations include presenting the subject with a question rather than a statement. The categories of response are mutually exclusive and usually cover the full range of opinion.