The Reliability of the Occupational Therapy Adult Perceptual Screening Test (OT-APST)

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Abstract:

The Occupational Therapy Adult Perceptual Screening Test (OT-APST) is designed to screen for impairments in visual perception and apraxia in adults following stroke. The OT-APST is a comprehensive battery that contains 25 items in the following seven subscale areas: agnosia (5 items); visuospatial relations covering elements of body scheme (4 items) and unilateral neglect (5 items); constructional skills (3 items); apraxia (6 items); acalculia (1 item); and functional skills (5 items). Several OT-APST items contribute to more than one subscale, hence there is a difference in the number of items in each subscale and the overall number of items. This study reports three aspects of the reliability of the OT-APST: interrater, intrarater and test-retest reliability.

The participants in the interrater and intrarater reliability study were 15 people following stroke. Videotaped OT-APST performance was scored by nine occupational therapists and the results compared with the scores of the first author as the gold-standard rater. The participants in the test-retest reliability study were 10 people who were neurologically stable one year after stroke and were assessed 2 weeks apart on the OT-APST.

The results obtained for each of the 25 OT-APST items included intraclass correlation coefficients (Type 3,1) for interrater reliability ranging from 0.66 to 1.0, for intrarater reliability ranging from 0.64 to 1.0, and for test-retest reliability ranging from 0.76 to 0.95. These results indicate that the OT- APST has good interrater, intrarater and test-retest reliability and offers a reliable screening tool for use by occupational therapists working in the area of stroke.

Document Type: Research Article

Publication date: November 1, 2005

More about this publication?
  • The British Journal of Occupational Therapy (BJOT) is the official journal of the College of Occupational Therapists. Its purpose is to publish articles relevant to theory, practice, research, education and management in occupational therapy internationally.

    BJOT publishes research articles, critical reviews, practice analyses, opinion pieces, editorials, letters to the editor, book reviews and an annual index. Please refer to the author's guide at http://www.cot.co.uk/british-journal-bjot/british-journal-occupational-therapy

    Submissions can be made at http://mc.manuscriptcentral.com/bjot

    The 2013 Impact Factor for The British Journal of Occupational Therapy is 0.897.

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