====== 相关样本 t 检验的统计前提 (Statistical prerequisites for t-tests for related samples) ======

1. 在每一种处理条件内，观察都彼此独立。\\
Within each treatment condition, observations were independent of each other.

2. 差异分数的总体分布是正态的。\\
Overall distribution of variance scores is normal.

3. 不需要考虑方差同质性。\\
There is no need to consider homogeneity of variance.