Measurement properties of the Galveston Orientation and Amnesia Test (GOAT) and improvement patterns during inpatient rehabilitation

J Head Trauma Rehabil. 2000 Feb;15(1):637-55. doi: 10.1097/00001199-200002000-00004.


Objectives: To determine the measurement properties of the Galveston Orientation and Amnesia Test (GOAT) using the Rasch model and rating scale analysis (RSA).

Design: Calibration of data collected weekly during rehabilitation.

Setting: Six inpatient rehabilitation facilities.

Participants: 77 patients admitted for their first rehabilitation after traumatic brain injury.

Results: Rescoring the items as dichotomies, three strata of posttraumatic amnesia (PTA) were identified. All items cohered to define a single construct and the item hierarchy confirmed their hypothesized ordering.

Conclusions: Equal-interval measures of PTA were developed that exhibited good reliability and validity. A self-scoring key was developed to more efficiently assess PTA.

Publication types

  • Clinical Trial
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Amnesia / diagnosis
  • Brain Injuries / complications
  • Brain Injuries / diagnosis*
  • Brain Injuries / psychology
  • Brain Injuries / rehabilitation*
  • Brief Psychiatric Rating Scale / standards*
  • Cognition Disorders / diagnosis*
  • Cognition Disorders / etiology
  • Data Collection
  • Female
  • Humans
  • Injury Severity Score
  • Inpatients
  • Male
  • Middle Aged
  • Neurologic Examination
  • Rehabilitation Centers
  • Reproducibility of Results
  • Sampling Studies
  • Sensitivity and Specificity