医学院学生做化学实验有明确动机，而且做实验的动机大多集中在对化学实验的认知内驱力和自我提高的内驱力上。
The students of medical colleges have clear motive when they perform chemistry experiments, and the motive mainly focuses on cognition drive and self-improvement.
问卷包括认知内驱力、自我提高内驱力、附属内驱力三个维度，具有良好的内部一致性信度和结构效度。
The questionnaire included cognitive internal drive, ego-enhancement drive and affiliated drive, which was of good internal consistency coefficient and constructs validity.
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