Brain Neurorehabil.  2017 Sep;10(2):e10. 10.12786/bn.2017.10.e10.

Reliability and Validity of the Korean Kessler Foundation Neglect Assessment Process

  • 1Department of Rehabilitation Medicine, Konkuk University School of Medicine and Konkuk University Medical Center, Seoul, Korea.
  • 2Department of Occupational Therapy, Far East University, Eumseong, Korea.
  • 3Department of Physical Medicine and Rehabilitation, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA.
  • 4Kessler Institute for Rehabilitation, West Orange, NJ, USA.
  • 5Department of Audiology and Speech-Language Pathology, Catholic University of Daegu, Daegu, Korea.
  • 6Department of Rehabilitation Medicine, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul, Korea.
  • 7Deptment of Rehabilitation Medicine, Bundang Jesaeng General Hospital, Seongnam, Korea.
  • 8Department of Rehabilitation Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.


OBJECTIVE: To develop the Korean version of the Kessler Foundation Neglect Assessment Process (KF-NAP), which enables a more functional assessment of unilateral spatial neglect, by first translating it into Korean and then statistically standardizing it.
Two rehabilitation specialists translated the KF-NAP into Korean. The entire process of administering the Korean KF-NAP to 30 patients with brain disease was video-recorded. Five occupational therapists from 4 university hospitals nationwide evaluated the 30 video-recorded examination cases. We analyzed inter- and intra-reliabilities of the Korean KF-NAP using the intraclass coefficient and Pearson correlation coefficient. Internal consistency reliability of the assessment categories was also examined using Cronbach's alpha coefficient.
For the construct validation study, the Korean KF-NAP was strongly correlated with the Albert's test and letter cancellation test (r ≥ 0.8; p < 0.05). The intraclass correlation coefficients for the first and second assessments of the Korean KF-NAP were 0.973 and 0.982, respectively, showing high reliability (p < 0.05). The intra-rater reliabilities exceeded 0.9 (p < 0.05), and Cronbach's alpha coefficient exceeded 0.8, showing internal consistency reliability.
The Korean KF-NAP is a reliable and valid instrument for assessing hemispatial neglect symptoms in patients with brain diseases.


Perceptual Disorders; Brain Diseases; Translations
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