14、估算笔势感知难度

估算笔势感知难度

1. 实验方法

1.1 李克特量表评级

为了评估笔势执行难度，让参与者重新执行笔势，并进行视觉检查。参与者可以随时修改之前的评级，直到对最终选择有信心为止。使用李克特量表问题来引出执行难度评级，具体如下：
| Likert rating | Associated explanation |
| — | — |
| 1. very easy to execute | I executed these gestures immediately and effortlessly with absolutely no need to pay attention |
| 2. easy to execute | I executed these easily, almost without paying attention |
| 3. moderate difficulty | I occasionally paid special attention during execution |
| 4. difficult to execute | I paid special attention with each execution |
| 5. very difficult to execute | I had to concentrate for each execution. There were times when I did not get the right shape from the first attempt |

1.2 笔势排序

在完成李克特评级后，根