1. Assessing Motor Performance

2. Performance Outcome Measures
Measurement of the movement result
Reaction Time
Movement Time
Error Scores
Distance

3. Movement Response Movement Time Reaction Time signal initiation
of movement
completion
of movement

4. Reaction Time
Simple - involves one external signal & one response

5. Reaction Time
Choice - involves multiple signals & multiple responses

6. Reaction Time
Discrimination - involves multiple choices & single responses

7. Movement Response
Reaction time and movement time used together to determine whether movement is being planned in advance or during execution
Practical Implication?

8. Performance Errors
Absolute Error - measures the overall amount of error in performance
X1 + X2| + |X3| + …/ # trials
(without regard to sign)

9. Performance Errors
Variable Error - represents the degree of consistency or variability associated with a performance
(X1) + (X2) + (X3) + …/ # trials
consider sign

10. Performance Errors
Constant error - measures level of bias in performance - considers amount and direction of error
CE - (CE) /# trials 2 2
# trials

11. Understanding Error 4
AE = 2.00 3
CE = 2.00
VE = 1.00 2 1 +

12. Understanding Error 4
AE = 2.00 3
CE = -2.00
VE = 1.00 2 1 +

13. Understanding Error 4
AE = 2.00 3
CE = 0.00
VE = 2.16 2 1 +

14. Understanding Error 4
AE = 2.00 3
CE = -1.00
VE = 2.24 2 1 +

15. Process Measures Measurement of the production of movement
Force Output
EMG
Velocity
Displacement

16. Response Process Measures
Kinematic Descriptors - quality of motion
Video film analysis

17. Response Process Measures
Kinetic Descriptors - forces during motion
Force plate measures