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Within the field of psychiatry, many simple and complex tools exist for the rating of such things as severity of illness and problems associated with the use of medications, for treating mental illness.
The Yale Food Addiction Scale (YFAS) is a 25-point questionnaire, based on DSM-IV codes for substance dependence criteria, to assess food addiction in individuals. The scale was released in 2009 by Yale University's Rudd Center for Food Policy and Obesity.
Each item yields a score of 0 to 6; the overall score thus ranges from 0 to 60. [4] Higher MADRS score indicates more severe depression. Usual cutoff points are: 0 to 6: normal [5] /symptom absent [4] 7 to 19: mild depression [4] [5] 20 to 34: moderate depression [5] 35 to 60: severe depression. [5]
The items on the questionnaire that relate to anxiety are I feel tense or wound up; I get a sort of frightened feeling as if something awful is about to happen; Worrying thoughts go through my mind; I can sit at ease and feel relaxed; I get a sort of frightened feeling like 'butterflies' in the stomach; I feel restless as I have to be on the move
The CBI-R is completed by a family member or close friend of the patient. The frequency of a behaviour over the previous month is rated on a scale of 0 to 4, where 0 = never; 1 = a few times per month; 2 = a few times per week; 3 = daily; 4 = constantly. Ratings are totalled for each domain to score the questionnaire.
The patient is rated by a clinician on 17 to 29 items (depending on version) scored either on a 3-point or 5-point Likert-type scale. For the 17-item version, a score of 0–7 is considered to be normal while a score of 20 or higher (indicating at least moderate severity) is usually required for entry into a clinical trial. [11]
Scoring [ edit ] There are ten questions about depression symptom frequency that the patient rates on a straight 4 point scale according to the following choices: "hardly ever," "much of the time," "most of the time," "all the time," and one question relating to the severity of suicidal ideation .
The Social Role subscale contains 9 items, and scores range from 0 to 36. A total score (TOT) is calculated by summing the subscales, and scores range from 0 to 180. The instrument's administration and scoring manual provides thresholds for clinically significant distress and impairment, and for reliable change.