心理解剖在中国自杀研究中应用的可行性

目的:通过对访谈工具的评价,对心理解剖方法进行信度和效度分析,探讨心理解剖方法在中国大陆的可行性。方法:选取自杀死亡者66例和正常对照组66例,每例访谈两个信息人同时访谈正常对照组本人,共计访谈330人。结果:从分半信度和α系数结果(r>0·6)看,各工具量表具有较高的内在一致性;从评分者信度结果看,总体上各工具量表具有较高的信度(r>0·6);以正常对照组本人作为“金标准”,信息人与本人具有较高的一致性,既具有较高的效度(r=0·21~0·61)。结论:由信息人所提供的信息具有可信性和有效性,在中国大陆自杀研究中采用心理解剖方法具有可行性。

The Applicability of Psychological Autopsy for Suicide Research in China

Objective: The purpose of this study is to probe the applicability of the psychological autopsy in Chinese mainland by the reliability and validity of the instruments. Methods:Sampling 66 completed suicides and 66 matched normal controls, two informants were interviewed for each case including controls themselves. The total number of interviews is 330. Results:Almost all the instruments had good inter- rater reliability(r>0.6). And there was high internal consistency in major instruments. The validity was examined by comparing the responses of informants and responses (good standards) of the target person in normal control group. There was also a high validity(r=0.21~0.61).Conclusion: The information reconstructed from the informants has good reliability and validity. It is possible to study suicide with psychological autopsy in China.