Design: a completely randomized self controlled repeated measures design.
设计：完全随机、自身对照、重复测量设计。
Study design. This study is a repeated measures design to measure the lumbar spine response to typical school backpack loads in healthy children.
研究设计：这项研究是一个重复测量设计，以衡量健康儿童腰椎对典型学校背包负荷的反应。
The fourth experiment investigated whether different hands affected the results, and was a repeated measures factorial design.
第四个实验考察不同的手是否对实验结果产生影响，为被试内设计。
The first experiment was a repeated measures factorial design to study whether different ways of manually rotating impacted mental rotation of the different objects.
研究共设计了四个实验，第一个实验采用被试内设计考察不同方式的手动旋转是否对不同客体的心理旋转产生影响。
The first experiment was a repeated measures factorial design to study whether different ways of manually rotating impacted mental rotation of the different objects.
研究共设计了四个实验，第一个实验采用被试内设计考察不同方式的手动旋转是否对不同客体的心理旋转产生影响。
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