GAD-7 (Generalized Anxiety Disorder- Seven Item Scale)

Type of Tool: Diagnostic
Repeatability: Repeatable by Clinician’s Judgment
Description: The GAD-7 is a 7 item scale, which is useful when screening for Generalized Anxiety Disorder. It effectively assesses the disorder’s severity in clinical practice as well as research settings. The GAD-7 can also be used to assess the effects of therapy, as it can serve as a measure for change across time.

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 * Wittchen, H. U., Zhao, S., Kessler, R. C., & Eaton, W. W. (1994). DSM-III-R generalized anxiety disorder in the national comorbidity survey. Arch Gen Psychiatry. 51:355-364.
 *Spitzer, R. L., Kroenke, K., Williams, J. B., & Lowe, B. A. (2006). Brief measure for assessing generalized anxiety disorder: The GAD-7. Arch Intern Med. 166(10): 1092-7.

HAM-A/HARS (Hamilton Rating Scale for Anxiety)

Type of Tool: Diagnostic
Repeatability: Repeatable by Clinician’s Judgment
Description: The Hamilton Anxiety Rating Scale is designed to quantify the severity of anxiety symptoms and to assess the response to therapeutic interventions. It is a 14-item, clinician-administered instrument that measures current anxiety symptoms. The scales’ items measure: anxious mood, tension, fears, insomnia, intellectual impairment, depressed mood, somatic muscular and sensory complaints, cardiovascular, respiratory, and gastrointestinal symptoms, genitourinary symptoms, autonomic symptoms, and patient's behavior at interview.

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*Hamilton, M. (1959). The assessment of anxiety states by rating. British Journal of Medical Psychology, 32:50–55.

OASIS (the Overall Anxiety Severity and Impairment Scale)

Type of Tool: Diagnostic
Repeatability: Repeatable by Clinicians's Judgment
Description: The Overall Anxiety Severity and Impairment Scale (OASIS) is a 5 item self-report measure that can be used to assess severity and impairment associated with any anxiety disorder or multiple anxiety disorders.

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*Norman, S. B., Cissell, S. H., Means-Christensen, A. J. & Stein, M. B. (2006). Development and validation of an Overall Anxiety Severity And Impairment Scale (OASIS). DEPRESSION AND ANXIETY 23:245–249.

PDSS-SR (The Panic Disorder Severity Scale Self-Report Form)

Type of Tool: Screening
Repeatability: Repeatable by Clinician’s Judgment
Description: The Panic Disorder Severity Scale (PDSS) is a seven-item instrument to rate overall severity of Panic Disorder. The measure assesses the severity of seven dimensions of panic disorder and associated symptoms: 1) frequency of panic attacks; 2) distress during panic attacks; 3) anticipatory anxiety (worry about future panic attacks); 4) agoraphobic fear and avoidance; 5) interoceptive fear and avoidance (i.e., apprehension and avoidance of bodily sensations); 6) impairment of or interference in work functioning; and 7) impairment of or interference in social functioning.

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*Houck, P. R., Spiegel, D. A., Shear, M. K. & Rucci, P. (2002). Reliability of the self-report version of the Panic Disorder Severity Scale. Depression and Anxiety, 15(4): 183-185. 

*Shear, M. K., Rucci, P., Williams, J., Frank, E., Grochocinski, V., Vander Bilt, J., Houck, P. & Wang, T. (2001). Reliability and validity of the Panic Disorder Severity Scale: Replication and extension. Journal of Psychiatric Research, 35(2): 293-296.

SPIN (Social Phobia Inventory: New Self-Rating Scale)

Type of Tool: Diagnostic
Repeatability: Repeatable by Clinician’s Judgment
Description: The SPIN is a 17-item questionnaire designed to assess symptoms of social phobia. Each item represents a symptom that is rated by the respondent based on how much he or she was bothered by the symptom during the prior week on a five-point scale ranging from 0 (not at all) to 4 (extremely). The SPIN consists of three subscales: fear, avoidance, and physiological arousal.

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*Connor, K. M., Davidson, J. R. D., Churchill, L. E., Sherwood, A., Foa, E., & Wesler, R. H. (2000). Psychometric properties of the Social Phobia Inventory (SPIN). British Journal of Psychiatry, 176, 379-386.

*Stein, M. B., Sareen, J., Hami, S., & Chao, J. (2001). Pindolol potentiation of paroxetine for generalized social phobia: A double-blind, placebo-controlled, crossover study. Am J Psychiatry, 158(10): 1725 - 1727. 

*Katzelnick, D. J., Kobak, K. A., DeLeire, T., Henk, H. J., Greist, J. H., Davidson, J. R.T., Schneier, F. R., Stein, M. B., & Helstad, C. P. (2001). Impact of Generalized Social Anxiety Disorder in Managed Care. Am J Psychiatry, 158(12): 1999 - 2007.

Y-BOC (Yale-Brown OCD Checklist)

Type of Tool: Diagnostic
Repeatability: Repeatable by Clinician’s Judgment
Description: The Yale-Brown Obsessive Compulsive Scale is designed to rate both the severity and type of symptoms in patients with obsessive compulsive disorder (OCD).

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*Goodman, W. K., Price, L. H., Rasmussen, S.A. et al. (1989). The Yale-Brown Obsessive Compulsive Scale. Archives of General Psychiatry, 46: 1006-1011.