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The Children's Depression Inventory (CDI and CDI2) is a psychological assessment that rates the severity of symptoms related to depression or dysthymic disorder in children and adolescents. [1] The CDI is a 27-item scale that is self-rated and symptom-oriented. [1] The assessment is now in its second edition.
Cronbach's alpha reported at .88 for measuring depression [22] Inter-rater reliability: Good Kappas range from .64-.81 for depression. [24] Kappa for anxiety is .83 [24] Test-retest reliability (stability) No published studies formally checking test-retest reliability Repeatability No published studies formally checking repeatability PHQ-9 ...
All versions are structured to include interviews with both the child and the parents or guardians, and all use a combination of screening questions and more comprehensive modules to balance interview length and thoroughness. The K-SADS serves to diagnose childhood mental disorders in school-aged children 6–18. The different adaptations of ...
Occupational noise exposure is the main risk factor for work-related hearing loss. One study examined hearing test results obtained between 2000 and 2008 for workers ages 18–65 who had a higher occupational noise exposure than the average worker. [153] Of the sample taken, 18% of the workers had hearing loss.
Environmental noise regulations usually specify a maximum outdoor noise level of 60 to 65 dB(A), while occupational safety organizations recommend that the maximum exposure to noise is 40 hours per week at 85 to 90 dB(A). For every additional 3 dB(A), the maximum exposure time is reduced by a factor 2, e.g. 20 hours per week at 88 dB(A).
Some depression rating scales are completed by patients. The Beck Depression Inventory, for example, is a 21-question self-report inventory that covers symptoms such as irritability, fatigue, weight loss, lack of interest in sex, and feelings of guilt, hopelessness or fear of being punished. [11]
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. [1] Scores on the test range from 0 to 33.
Electronic noise management test in Vienna, 1973. The first patent for a noise control system— U.S. patent 2,043,416 —was granted to inventor Paul Lueg in 1936. The patent described how to cancel sinusoidal tones in ducts by phase-advancing the wave and canceling arbitrary sounds in the region around a loudspeaker by inverting the polarity. [3]