简版生活目的量表在大学生中应用的信效度分析

Psychometric character of purpose in life test-short form in college students

目的评价简版生活目的量表（PIL-SF）的测量学性能和适用性。方法采用生活目的量表（PIL）、生命意义量表（MLM）和生活满意度量表（SWLS）对997名大学生进行问卷调查，并对其中120名大学生4周后进行重测。结果项目分析显示PIL-SF各条目的区分度良好，鉴别指数均在0．7以上（r=0．753—0．838，P〈0．01）。量表的内部一致性信度为0．811，分半信度为0．774，重测信度为0．786。与PIL、MLM、SWLS的效标相关系数分别为0．83，0．67和0．46。大学生PIL—SF总均分为（5．18：：e1．09）分，总体上生命意义感处于较高水平。其中10．9％的学生缺乏生活目的性，生命意义感低；23．5％的学生生活目的不明确；37．5％的学生有较高的生活目的性，28．1％的学生有很高的生活目的性与生命意义感。结论PIL—SF量表具有良好的信、效度，可在人群心理健康筛查和研究中作为快速评价个体生命意义感的工具。

Objective To research the psychometric properties and usability of the Purpose in Life Test-Short Form（PIL-SF） for Chinese University students. Methods 997 college students were measured by Purpose in Life （PIL） , Meaningful Life Measure （MLM） and the Satisfaction with Life Scale （SWLS） , and 120 college students were twice measured by the same questionnaire after four weeks. Results The item discrimination index were all above 0.7 （ r= 0.753 - 0.838, P〈 0.01 ）. The internal consistency reliability of PIL-SF was 0.811,the split-half reliability was 0.774 and the test-retest reliability was 0.786. The criterion correlations of PIL-SF with PIL,MLM and SWLS was 0.83,0.67 and 0.46 respectively （P〈0.01）. The PIL- SF average scores of these students was 5.18±1.09. Most of the college students＂ meaning of life were at a relatively higher level. There were 10.9% of students lack goals and poor meaning of life ,23.5% of them do not have clear purpose, relatively lower meaning of life, 37.5% of them had relatively higher meaning of life and 28.1% of them hold explicit purpose. Conclusion The reliability and validity of PIL-SF are favorable, and it is a useful tool to be used in the mental health screening and evaluation the people＇ s meaning in life quickly.