Pediatric Physical Therapy

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Pediatric Physical Therapy:
doi: 10.1097/PEP.0b013e3182750c28
Research Article

The Motor Learning Strategy Instrument: Interrater Reliability Within Usual and Virtual Reality Physical Therapy Interventions

Levac, Danielle PhD; Missiuna, Cheryl PhD; Wishart, Laurie PhD; DeMatteo, Carol MSc; Wright, Virginia PhD

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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.

© 2013 Lippincott Williams & Wilkins, Inc.


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