Glasgow Anxiety Scale for people with an Intellectual Disability (GAS-ID): Development and psychometric properties of a new measure for use with people with mild intellectual disability
Background. Self-rating scales are widely used in general adult practice; however, there is no reliable and valid method for assessing state anxiety in people with intellectual disability (ID). The present study describes the development and psychometric evaluation of a new scale, the Glasgow Anxiet...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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2003
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| _version_ | 1797051935973441536 |
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| author | Mindham, J Espie, C |
| author_facet | Mindham, J Espie, C |
| author_sort | Mindham, J |
| collection | OXFORD |
| description | Background. Self-rating scales are widely used in general adult practice; however, there is no reliable and valid method for assessing state anxiety in people with intellectual disability (ID). The present study describes the development and psychometric evaluation of a new scale, the Glasgow Anxiety Scale for People with an Intellectual Disability (GAS-ID). Methods. First, an item pool was generated from focus groups, a review of the literature and clinician feedback. Secondly, a draft scale was administered to 19 anxious and 16 non-anxious people with ID for further validation and appraisal of reliability. Thirdly, the scale was completed by 19 anxious, non-ID people for cross-validation with the Beck Anxiety Inventory (BAI). Finally, physiological concomitants were validated by pulse-oximetry. Results. The 27-item GAS-ID discriminated anxious from non-anxious participants, had good test-retest reliability (r=0.95) and internal consistency (α=0.96), and was reasonably correlated with the BAI (ρ=0.75). The correlation between the physiological subscale of the GAS-ID and changes in pulse rate was moderately significant (ρ=0.52). Conclusions. This preliminary study suggests that the GAS-ID offers a psychometrically robust and practical (5-10 min) approach to the appraisal of anxiety in this population. |
| first_indexed | 2024-03-06T18:26:12Z |
| format | Journal article |
| id | oxford-uuid:080a9451-4dc1-4a6c-b613-a69cd8639f53 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:26:12Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:080a9451-4dc1-4a6c-b613-a69cd8639f532022-03-26T09:10:47ZGlasgow Anxiety Scale for people with an Intellectual Disability (GAS-ID): Development and psychometric properties of a new measure for use with people with mild intellectual disabilityJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:080a9451-4dc1-4a6c-b613-a69cd8639f53EnglishSymplectic Elements at Oxford2003Mindham, JEspie, CBackground. Self-rating scales are widely used in general adult practice; however, there is no reliable and valid method for assessing state anxiety in people with intellectual disability (ID). The present study describes the development and psychometric evaluation of a new scale, the Glasgow Anxiety Scale for People with an Intellectual Disability (GAS-ID). Methods. First, an item pool was generated from focus groups, a review of the literature and clinician feedback. Secondly, a draft scale was administered to 19 anxious and 16 non-anxious people with ID for further validation and appraisal of reliability. Thirdly, the scale was completed by 19 anxious, non-ID people for cross-validation with the Beck Anxiety Inventory (BAI). Finally, physiological concomitants were validated by pulse-oximetry. Results. The 27-item GAS-ID discriminated anxious from non-anxious participants, had good test-retest reliability (r=0.95) and internal consistency (α=0.96), and was reasonably correlated with the BAI (ρ=0.75). The correlation between the physiological subscale of the GAS-ID and changes in pulse rate was moderately significant (ρ=0.52). Conclusions. This preliminary study suggests that the GAS-ID offers a psychometrically robust and practical (5-10 min) approach to the appraisal of anxiety in this population. |
| spellingShingle | Mindham, J Espie, C Glasgow Anxiety Scale for people with an Intellectual Disability (GAS-ID): Development and psychometric properties of a new measure for use with people with mild intellectual disability |
| title | Glasgow Anxiety Scale for people with an Intellectual Disability (GAS-ID): Development and psychometric properties of a new measure for use with people with mild intellectual disability |
| title_full | Glasgow Anxiety Scale for people with an Intellectual Disability (GAS-ID): Development and psychometric properties of a new measure for use with people with mild intellectual disability |
| title_fullStr | Glasgow Anxiety Scale for people with an Intellectual Disability (GAS-ID): Development and psychometric properties of a new measure for use with people with mild intellectual disability |
| title_full_unstemmed | Glasgow Anxiety Scale for people with an Intellectual Disability (GAS-ID): Development and psychometric properties of a new measure for use with people with mild intellectual disability |
| title_short | Glasgow Anxiety Scale for people with an Intellectual Disability (GAS-ID): Development and psychometric properties of a new measure for use with people with mild intellectual disability |
| title_sort | glasgow anxiety scale for people with an intellectual disability gas id development and psychometric properties of a new measure for use with people with mild intellectual disability |
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