title: Stability of person ability measures in people with acquired brain injury in the use of everyday technology: the test-retest reliability of the Management of Everyday Technology Assessment (META).
abstract: OBJECTIVE
  To evaluate the test-retest reliability of the Management of Everyday Technology Assessment (META) in a sample of people with acquired brain injury (ABI).
  
  
  METHODS
  The META was administered twice within a two-week period to 25 people with ABI. A Rasch measurement model was used to convert the META ordinal raw scores into equal-interval linear measures of each participant's ability to manage everyday technology (ET). Test-retest reliability of the stability of the person ability measures in the META was examined by a standardized difference Z-test and an intra-class correlations analysis (ICC 1).
  
  
  RESULTS
  The results showed that the paired person ability measures generated from the META were stable over the test-retest period for 22 of the 25 subjects. The ICC 1 correlation was 0.63, which indicates good overall reliability.
  
  
  CONCLUSIONS
  The META demonstrated acceptable test-retest reliability in a sample of people with ABI. The results illustrate the importance of using sufficiently challenging ETs (relative to a person's abilities) to generate stable META measurements over time. Implications for Rehabilitation The findings add evidence regarding the test-retest reliability of the person ability measures generated from the observation assessment META in a sample of people with ABI. The META might support professionals in the evaluation of interventions that are designed to improve clients' performance of activities including the ability to manage ET.
authors.affiliation: a Division of Occupational Therapy, Department of Neurobiology , Care Sciences and Society, Karolinska Institutet , Huddinge , Sweden .
authors.forename: Camilla
authors.initials: C
authors.lastname: Malinowsky
authors.affiliation: b Department of Research , Norrbotten County Council , Luleå , Sweden , and.|c Department of Health Sciences , Occupational Therapy, Luleå University of Technology , Luleå , Sweden.
authors.forename: Ann-Charlotte
authors.initials: AC
authors.lastname: Kassberg
authors.affiliation: c Department of Health Sciences , Occupational Therapy, Luleå University of Technology , Luleå , Sweden.
authors.forename: Maria
authors.initials: M
authors.lastname: Larsson-Lund
authors.affiliation: a Division of Occupational Therapy, Department of Neurobiology , Care Sciences and Society, Karolinska Institutet , Huddinge , Sweden .
authors.forename: Anders
authors.initials: A
authors.lastname: Kottorp
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D001930:Brain Injuries / Q000534:rehabilitation*; D040421:Cell Phone / Q000706:statistics & numerical data*; D003201:Computers / Q000706:statistics & numerical data*; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009788:Occupational Therapy / Q000379:methods* / Q000592:standards; D011594:Psychometrics; D015203:Reproducibility of Results; D000068997:Smartphone / Q000706:statistics & numerical data
keywords: Assessment; brain injury; occupational therapy; technology; test–retest reliability