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Published on: September 18, 2017
The motor learning strategy instrument: interrater reliability within usual and virtual reality physical therapy
Danielle Levac1, Cheryl Missiuna, Laurie Wishart
1School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada. levacde@mcmaster.ca
Purpose:
To evaluate and compare the interrater reliability of the Motor Learning Strategy Rating Instrument (MLSRI) within usual and virtual reality (VR) interventions for children with acquired brain injury.
Methods:
Two intervention sessions for each of 11 children (total, 22) were videotaped; sessions were provided by 4 physical therapists. Videotapes were divided into usual and VR components and rated by 2 observers using the MLSRI. A generalizability theory approach was used to determine interrater reliability for each intervention.
Results:
Interrater reliability for usual interventions was high for the MLSRI total score (g-coefficient, 0.81), whereas it was low for the VR total score (g-coefficient, 0.28); MLSRI category g-coefficients varied from 0.35 to 0.65 for usual and from 0.17 to 0.72 for VR interventions.
Conclusion:
Adequate reliability was achieved within ratings of usual interventions; however, challenges related to MLSRI use to rate VR-based interventions require further evaluation.
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