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Inter-rater reliability of the Top Down Motor Milestone Test: a cross-sectional study
Jaya Shanker Tedla1, Sailakshmi Ganesan, Srinadh Katragadda
1Department of Physiotherapy, Kasturba Medical College Hospital, A Constituent Institute of Manipal University, Mangalore, India. shankar_tedla@yahoo.co.in
Objective:
To assess the inter-rater reliability of the Top Down Motor Milestone Test, which is the first step of the Mobility Opportunities Via Education programme in children with motor disabilities.
Design:
A cross-sectional study.
Setting:
Neurosensory Developmental Unit of a tertiary hospital.
Subjects:
Parents of 21 children with motor disabilities were interviewed and scored on the Top Down Motor Milestone Test.
Methods:
The subjects were interviewed by one therapist while two other therapists observed the interview procedure. All three therapists were blinded to each other's scores.
Results:
Inter-rater reliability was analysed for all the 16 subtests using the inter-rater kappa. The pooled kappa was done for the three raters. The standard error and the P-value were also calculated. The value of inter-rater kappa for individual subtests ranged from 0.74 to 0.96. Pooled kappa for the Top Down Motor Milestone Test was 0.88 with standard error 0.06 and P-value<0.01.
Conclusion:
The inter-rater reliability of the Top Down Motor Milestone Test proved to be good for each subtest and for the whole test.
