Related Experiment Video
Updated: May 15, 2026
Quantified Assessment of Infant's Gross Motor Abilities Using a Multisensor Wearable
Published on: May 17, 2024
Reliability of retrospective assignment of gross motor function classification system scores
T A Mayson1, V Ward, K R Davies
1Shriners Gait Lab, Sunny Hill Health Centre for Children, Vancouver, British Columbia, Canada. tmayson@cw.bc.ca
Objectives:
To assess "alternate forms" reliability and inter-rater reliability of Gross Motor Function Classification System (GMFCS) scores.
Methods:
Fifty randomly selected children with cerebral palsy were divided into two groups: (1) GMFCS score assigned during gait assessment ("GMFCS previously assigned") and (2) no GMFCS score assigned. Using database information, two physiotherapists independently determined GMFCS scores for 25 children from the "previously assigned" group, and 25 from the "no score assigned" group. Therapists compared their recently assigned scores for the "previously assigned" group, discussing discrepancies until attaining agreement. This group's consensus scores were compared to GMFCS scores assigned at time of actual assessment to calculate "alternate forms" reliability.
Results:
Between-therapist agreements were kappa = 0.84 for "GMFCS previously assigned" group and 0.95 for "no GMFCS assigned" group. Kappa agreement between direct assessment and retrospectively assigned scores for the "GMFCS previously assigned" group was 0.79.
Conclusions:
Retrospective GMFCS scores can be reliably assigned.
More Related Videos
07:20Repeated Transcranial Magnetic Stimulation Combined with Action Observation Training in Children with Spastic Cerebral Palsy
Published on: August 9, 2024
08:40Isokinetic Robotic Device to Improve Test-Retest and Inter-Rater Reliability for Stretch Reflex Measurements in Stroke Patients with Spasticity
Published on: June 12, 2019