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Zeros between two significant non-zero digits are significant (significant trapped zeros). 101.12003 consists of eight significant figures if the resolution is to 0.00001. 125.340006 has seven significant figures if the resolution is to 0.0001: 1, 2, 5, 3, 4, 0, and 0. Zeros to the left of the first non-zero digit (leading zeros) are not ...
A number of researchers have explored HADS data to establish the cut-off points for caseness of anxiety or depression. Bjelland et al (2002) [3] through a literature review of a large number of studies identified a cut-off point of 8/21 for anxiety or depression. For anxiety (HADS-A) this gave a specificity of 0.78 and a sensitivity of 0.9.
Aaron T. Beck et al. (1988) combined three separate anxiety questionnaires, with 86 original items, to derive the BAI: the Anxiety Checklist, the Physician's Desk Reference Checklist, and the Situational Anxiety Checklist. [2] The BAI is used for measuring the severity of anxiety in adolescents and adults ages 17 and older.
All of these scores are used to compute an overarching score that indicates a person's anxiety severity. [4] The Hamilton Anxiety Rating scale has been considered a valuable scale for many years, but the ever-changing definition of anxiety, new technology, and new research has had an effect on the scale's perceived usefulness. [5]
The scale is composed of 24 items divided into 2 subscales, 13 concerning performance anxiety, and 11 pertaining to social situations. The 24 items are first rated on a Likert Scale from 0 to 3 on fear felt during the situations, and then the same items are rated regarding avoidance of the situation. [7]
The SIAS discriminates between social anxiety and general anxiety as it has low associations with trait anxiety (a level of stress associated with an individual personality) and general distress. [8] Beyond identifying those who experience social anxiety of some form, the scale can discriminate within the social anxiety class as well. [1]
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Anxiety present questions represent the presence of anxiety in a statement like “I feel worried.” More examples from the STAI on anxiety absent and present questions are listed below. Each measure has a different rating scale. The 4-point scale for S-anxiety is as follows: 1.) not at all, 2.) somewhat, 3.) moderately so, 4.) very much so.
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