Means and SD for the control and intervention group, and the younger and older adult samples on level of self-reported NA measured at three timepoints.

Means and SD for the control and intervention group, and the younger and older adult samples on level of self-reported NA measured at three timepoints.本数据集包含对照组、干预组，以及青年成人样本与老年成人样本在三个时间点下测得的自我报告负性情感（Negative Affect，NA）水平的均值与标准差（Standard Deviation，SD）。