Conclusions repetitive measure in analysis of qol can not only demonstrate the change in qol and its time trend , but also explain the degree of change with time for the qol in different groups by interaction meaning 结论重复测量在生命质量的研究中不仅能够说明各观测值随时间的变化趋势，并且能通过交互作用的意义来说明分组因素的作用是否会随着时间发生变化。
Measurements of stressors ( major life events , minor daily hassles and perceived stress of university life ) , personality ( locus of control , extraversion and neuroticism ) and mental health ( depression , anxiety and somatic symptoms ) were taken at time 1 ; mental health was measured again at time 2 eight months later 本研究在第一次施测时测量了压力(包括严重生活事件、轻微生活困扰及主观知觉的大学生活压力) ，人格特质(包括内外控、内外向及神经质) ，以及心理健康(包括忧郁、焦虑和身体化症状) ；在八个月后第二次施测时重复测量了心理健康。
