The second within-subject factor is difficulty, included three levels, easy, medium and difficult.
第二个因素是被试内变量,即阅读材料的难度,分为容易、中等、难三个水平。
This model included three levels: the global self worth, general self worth and special self worth.
该模型包括总体自我价值感、一般自我价值感和特殊自我价值感三个层次;
A high level energy group was added into this repeated experiment. The experiment included three groups i. e. high, medium and low energy levels.
本重复试验增加一个高能组,共设高、中、低三个能量水平组。
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