Reliability of two visual-perceptual tests for children with cerebral palsy.
OBJECTIVE
We examined the reliability of the Motor-Free Visual Perception Test-Revised (MVPT-R) and the Test of Visual-Perceptual Skills-Revised (TVPS-R) in 52 children with cerebral palsy.


METHODS
The MVPT-R and TVPS-R were initially assessed by a single rater and then randomly assigned to the same rater or another rater after 6 to 14 days.


RESULTS
For scale-level reliability of both tests, the intraclass correlation coefficients (ICCs) were high. The smallest real differences (SRDs) were largely acceptable. The OICCs of most subscale-level reliability of the TVPS-R were satisfactory. The SRD of each TVPS-R subscale score was notable (>29%). The internal consistency was high for both tests.


CONCLUSIONS
The scale-level reliabilities of both tests were satisfactory in children with cerebral palsy. Although most subscales of the TVPS-R had acceptable test-retest or interrater agreement, all subscales of the TVPS-R had large SRDs, limiting their clinical utility.
Tsai
Li-ting
LT
Taipei Parents' Association for the Visually Impaired, National Taiwan University Hospital, Taipei.
Lin
Keh-chung
KC
Liao
Hua-fang
HF
Hsieh
Ching-lin
CL
D002547:Cerebral Palsy; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D015203:Reproducibility of Results; D014787:Vision Tests; D014796:Visual Perception