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Assessing Motor Performance
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Performance Outcome Measures
Measurement of the movement result Reaction Time Movement Time Error Scores Distance
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Movement Response Movement Time Reaction Time signal initiation
of movement completion of movement
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Reaction Time Simple - involves one external signal & one response
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Reaction Time Choice - involves multiple signals & multiple responses
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Reaction Time Discrimination - involves multiple choices & single responses
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Movement Response Reaction time and movement time used together to determine whether movement is being planned in advance or during execution Practical Implication?
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Performance Errors Absolute Error - measures the overall amount of error in performance X1 + X2| + |X3| + …/ # trials (without regard to sign)
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Performance Errors Variable Error - represents the degree of consistency or variability associated with a performance (X1) + (X2) + (X3) + …/ # trials consider sign
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Performance Errors Constant error - measures level of bias in performance - considers amount and direction of error CE - (CE) /# trials 2 2 # trials
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Understanding Error 4 AE = 2.00 3 CE = 2.00 VE = 1.00 2 1 +
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Understanding Error 4 AE = 2.00 3 CE = -2.00 VE = 1.00 2 1 +
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Understanding Error 4 AE = 2.00 3 CE = 0.00 VE = 2.16 2 1 +
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Understanding Error 4 AE = 2.00 3 CE = -1.00 VE = 2.24 2 1 +
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Process Measures Measurement of the production of movement
Force Output EMG Velocity Displacement
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Response Process Measures
Kinematic Descriptors - quality of motion Video film analysis
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Response Process Measures
Kinetic Descriptors - forces during motion Force plate measures
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