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The Montgomery–Åsberg Depression Rating Scale (MADRS) is a ten-item [1] diagnostic questionnaire which mental health professionals use to measure the severity of depressive episodes in patients with mood disorders.
The Eating Disorder Examination Questionnaire (EDE-Q) is a 28-item self-report questionnaire, adapted from the semi-structured interview, the Eating Disorder Examination (EDE). The questionnaire is designed to assess the range, frequency and severity of behaviours associated with a diagnosis of an eating disorder.
Upon revision by Nassir Ghaemi and colleagues, the scale was developed into two sections for a total of 20 questions. [2] The BSDS is widely accepted as an important measure of bipolar disorder alongside other diagnostic tools such as the Mood Disorder Questionnaire and the Bipolar Depression Rating Scale. [3]
The Mood Disorder Questionnaire (MDQ) is a self-report questionnaire designed to help detect bipolar disorder. [1] It focuses on symptoms of hypomania and mania, which are the mood states that separate bipolar disorders from other types of depression and mood disorder.
Max Hamilton originally published the scale in 1960 [3] and revised it in 1966, [4] 1967, [5] 1969, [6] and 1980. [7] The questionnaire is designed for adults and is used to rate the severity of their depression by probing mood, feelings of guilt, suicide ideation, insomnia, agitation or retardation, anxiety, weight loss, and somatic symptoms.
This depression rating scale includes a 27-item screening questionnaire and follow-up clinician interview designed to facilitate the diagnosis of common mental disorders in primary care. Its lengthy administration time has limited its clinical usefulness; it has been replaced by the Patient Health Questionnaire (PHQ-9). [16]
The PHQ-9 is the nine-item depression scale found in the 59-item PHQ. The PHQ is a self-administered version of the PRIME-MD, a screening tool that assesses 12 mental and emotional health disorders. [7] It has modules on mood (PHQ-9), anxiety, alcohol, eating, and somatoform disorders. [8]
The reliability scores of the scales in terms of Cronbach's alpha scores rate the Depression scale at 0.91, the Anxiety scale at 0.84, and the Stress scale at 0.90 in the normative sample. The means and standard deviations for each scale are 6.34 and 6.97 for depression, 4.7 and 4.91 for anxiety, and 10.11 and 7.91 for stress, respectively.