Each condition contains 2 trials. We took 6 volunteer subjects from the student of our university. We examined accuracy of tracing the trainer's trajectory. Mean distance between trainer's hand and trainee's is calculated at each program cycle. The avobe graph shows mean distance of the each condition.
Horizontal axis indicates time delay.
The mean distances between the trainer and trainee are indicated by bar chart. The data includes error bars which indicates standard deviation. Discussion We can not find significant difference between two conditions from average completion time. Force feedback actually assisted the task, although resistance applied to the trainers required time to complete the task. However, we can find qualitative differences from mean distance.