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Objective@#To examine the reliability and validity of the Columbia suicide screen (CSS) in detecting suicide risk for junior middle school students.@*Methods@#Using convenient sampling, 902 students of a junior middle school were tested with CSS and Beck depression inventory (BDI) .Cronbach's alpha coefficient, parity split-half coefficient and test-retest reliability were examined after two weeks.Content validity was evaluated using specialist analysis and sensibility analysis.The BDI was used to explore the correlative validity.The convergent validity of CSS and another suicide risk screening method was examined.@*Results@#The proportion of students with suicide problem (suicide ideation or suicide attempts), suicide ideation within the previous year and suicide attempts in the past were 14.97%(135/902), 14.19%(128/902)and 3.66%(33/902) respectively.The Cronbach's alpha coefficient and Parity split-half coefficient of CSS were 0.844 and 0.908, respectively.The test-retest reliability of CSS were screening of suicide ideation (ICC=0.897), screening of suicide attempts (ICC=0.798), screening of substance use (ICC=0.882), screening of suicide problem (ICC=0.881), and screening of suicide problem combine depression (ICC=0.829) (P<0.01). Sensibility analysis of CSS showed the cronbach α ranged from 0.834 to 0.845.Correlative validity between CSS and BDI were screening of suicide ideation(ρ=0.238, 0.337, 0.334, 0.599), screening of suicide attempts(ρ=0.122, 0.231, 0.310, 0.221), screening of depression(ρ=0.335, 0.309, 0.196, 0.215), screening of suicide problem(ρ=0.240, 0.328, 0.321, 0.590)and screening of suicide problem combine depression(ρ=0.212, 0.324, 0.320, 0.474)(P<0.01). Convergent validity between CSS and another suicide risk screening method were screening of suicide ideation(ρ=0.468), screening of suicide attempts(ρ=0.349), screening of suicide problem(ρ=0.453), and screening of suicide problem combine depression(ρ=0.469)(P<0.01).@*Conclusion@#CSS has good internal consistency reliability, split-half reliability and content validity.Screening of suicide ideation, suicide attempts, suicide problem and suicide problem combine depression have good test-retest reliability, but the correlative validity and convergent validity are not satisfying.These four screening methods can only be used for preliminary screening suicide risk in junior middle school students.
ABSTRACT
Objective To examine the reliability and validity of the Columbia suicide screen (CSS) in detecting suicide risk for junior middle school students.Methods Using convenient sampling,902 students of a junior middle school were tested with CSS and Beck depression inventory (BDI).Cronbach's alpha coefficient,parity split-half coefficient and test-retest reliability were examined after two weeks.Content validity was evaluated using specialist analysis and sensibility analysis.The BDI was used to explore the correlative validity.The convergent validity of CSS and another suicide risk screening method was examined.Results The proportion of students with suicide problem (suicide ideation or suicide attempts),suicide ideation within the previous year and suicide attempts in the past were 14.97％ (135/902),14.19％ (128/902)and 3.66％ (33/902) respectively.The Cronbach's alpha coefficient and Parity split-half coefficient of CSS were 0.844 and 0.908,respectively.The test-retest reliability of CSS were screening of suicide ideation (ICC =0.897),screening of suicide attempts (ICC =0.798),screening of substance use (ICC =0.882),screening of suicide problem (ICC =0.881),and screening of suicide problem combine depression (ICC =0.829)(P＜0.01).Sensibility analysis of CSS showed the cronbach α ranged from 0.834 to 0.845.Correlative validity between CSS and BDI were screening of suicide ideation (ρ =0.238,0.337,0.334,0.599),screening of suicide attempts (ρ =0.122,0.231,0.310,0.221),screening of depression (ρ =0.335,0.309,0.196,0.215),screening of suicide problem(ρ =0.240,0.328,0.321,0.590)and screening of suicide problem combine depression(ρ=0.212,0.324,0.320,0.474) (P＜0.01).Convergent validity between CSS and another suicide risk screening method were screening of suicide ideation (ρ =0.468),screening of suicide attempts (ρ =0.349),screening of suicide problem (ρ =0.453),and screening of suicide problem combine depression(ρ=0.469)(P＜0.01).Conclusion CSS has good internal consistency reliability,split-half reliability and content validity.Screening of suicide ideation,suicide attempts,suicide problem and suicide problem combine depression have good test-retest reliability,but the correlative validity and convergent validity are not satisfying.These four screening methods can only be used for preliminary screening suicide risk in junior middle school students.
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Objectives: To analyze the prevalence of bullying behavior among students of 9th grade across China in 2016 and to determine the impact of different types of bullying on students’physical and mental health. Methods:This paper adopted the China Education Panel Survey ( CEPS) conducted in 2016 using the sample design of PPS and cluster sampling. The survey population involved students of 9th grade and 8600 of them were respondents of the prepared questionnaire. Opting for the survey questionnaires to collect the basic information from the survey subjects, the study measured and compared the prevalence of physical, verbal, social and cyber bullying observed in 2016. Therefore, impacts of bullying on physical and mental/psychological health of students were respectively examined u-sing multiple OLS regression model and multi-factor sequential logit model. Results: The results of the survey found that during the past academic year, 49. 29% of students suffered verbal bullying, 37. 69% experienced social bull-ying followed by 18. 41% for those who caught physical bullying and finally 14. 08% were cyber bullied. The results of the multiple OLS regression analysis indicated that being bullied was a risk factor for students’ mental health, and social bullying was the most deleterious, followed by verbal bullying. The multi-factor sequential logit model results showed that the risk of illness was higher for students who were bullied than for those who were not bullied and verbal bullying was a notable health risk factor for physical health of students. Conclusions: Currently, verbal bullying is the most prevalent of the existing types of bullying in schools while new problems emerged with cyber bullying. Being bul-lied has a negative effect on both physical and mental health of students. The main risk factor for mental health is so-cial bullying and verbal bullying presents higher risks for physical health of students.
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Objective:To revise the Psychological Security-insecurity Questionnaire(S-I) developed by Maslow and examine its reliability and validity.Methods:Data were collected from 1893 junior middle school students with the original S-I.Results:The revised S-I consisted of 44 items,including 10 first-order factors and 3 second-order factors.It had good test-retest reliability,homogeneity reliability and criterion validity.Conclusion:The revised S-I has satisfying reliabilities and validities,and is suitable to asses the psychological security and insecurity for Chinese junior school students.