Scale-Description

The Geriatric Anxiety Scale – GAS Version is an assessment tool designed to evaluate anxiety in elderly individuals. The GAS scale includes questions that assess symptoms of anxiety, considering the unique challenges and characteristics of aging. The elderly version typically includes around 30 questions, which are designed to be understandable and relevant for the older population.

Data Analysis and Usage

Data from the GAS scale involves counting the positive responses to each question and calculating the total score. The total score can indicate the presence and severity of anxiety symptoms. The scale can be used for diagnosis and monitoring of anxiety symptoms, providing critical information for clinical practice.

Analysis may include

Statistical Analysis: Calculation of mean and standard deviation of scores.
Reliability Assessment: Using reliability indices such as Cronbach’s alpha.
Validation: Comparison with other anxiety assessment scales to measure validity.

Purpose

The primary objective of the GAS scale is to identify and assess anxiety symptoms in elderly individuals, which may present differently than in younger populations. GAS aims to improve understanding of the mental state of older adults and enhance diagnosis and intervention for their mental well-being.

Calibration

Calibration of the GAS is conducted through validation studies that evaluate the scale’s validity and reliability across various elderly populations. This includes comparing results with other established anxiety scales and analyzing the internal consistency of the items.
Calibration procedures involve:
Validation with Other Tools: Comparison with anxiety assessment tools such as the Hamilton Anxiety Rating Scale.
Reliability Analysis: Using internal consistency and test-retest reliability to ensure the accuracy of the scale.

References

Weiss, D. S., & Marmar, C. R. (1997). The Impact of Event Scale—Revised. In J. P. Wilson & T. M. Keane (Eds.), Assessing Psychological Trauma and PTSD. Guilford Press.
Gillis, L. L., & Aveline, M. (2002). Validation of the Geriatric Anxiety Scale in a Primary Care Population. Journal of Clinical Psychiatry, 63(3), 193-199.
Gatz, M., & Rehm, L. P. (2001). Anxiety and Depression in Older Adults: Validation of the Geriatric Anxiety Scale. Clinical Gerontologist, 24(1), 49-58.