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Objective:To develop and examine the reliability and validity of the adolescent health literacy evaluation scale under public health emergencies (AHLES-PHE) in junior middle school students.Methods:The initial version of AHLES-PHE was formed by combining the characteristics of public health emergencies and adolescent health literacy.The expert version of AHLES-PHE was formed by two rounds of Delphi expert consultation.Totally 1 729 adolescent students from three junior middle schools in Changzhou City were tested.The formal version of AHLES-PHE was formed through item analysis and factor analysis (structural validity). The content validity of the formal version of AHLES-PHE was evaluated by specialist analysis and sensibility analysis, and its correlation validity with the everyday health information literacy (EHIL) was tested.The internal consistency reliability, parity split-half coefficient and test-retest reliability were calculated.Results:(1)Item analysis: the correlation coefficient between the scores of each item and the total score of AHLES-PHE expert version was 0.420 to 0.722 ( P<0.01), and the CR of decision value was 10.140 to 66.980 ( P<0.01). (2)Validity analysis: the formal version of AHLES-PHE with 45 items and 8 factors was obtained by exploratory factor analysis.The 8 factors could explain 61.30% of the total variation.The fitting indexes of the confirmatory factor analysis model were χ2/ df=3.325, RMSEA=0.052, GFI=0.853, CFI=0.912, TLI=0.904, NFI=0.880.Sensibility analysis of the formal version of AHLES-PHE showed the Cronbach's α ranged from 0.957 to 0.958.The correlation coefficient between the total score of AHLES-PHE formal version and the total score of EHIL was 0.340 ( P<0.01). (3)Reliability analysis: the Cronbach's α coefficient and parity split-half coefficient of the formal version of AHLES-PHE were 0.958 and 0.975, respectively.The test-retest reliability of the formal version of AHLES-PHE was 0.753 ( P<0.01). Conclusion:The formal version of AHLES-PHE developed in this study has good reliability, structural validity and content validity, and the correlation validity with EHIL is common.This scale has a certain degree of applicability to the assessment of health literacy for junior middle school students under public health emergencies.
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.
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.