Development of a Measurement of Suicidal Protection (MSP) for High School Students in Korea

Chan Sun Park; Sook Ja Yang

doi:10.12799/jkachn.2019.30.2.161

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Park and Yang: Development of a Measurement of Suicidal Protection (MSP) for High School Students in Korea

Original Article

Journal of Korean Academy of Community Health Nursing 2019; 30(2): 161-173.

Published online: 28 June 2019

DOI: https://doi.org/10.12799/jkachn.2019.30.2.161

Development of a Measurement of Suicidal Protection (MSP) for High School Students in Korea

Chan Sun Park¹

, Sook Ja Yang²

¹Assistant Professor, Daedong College, Busan, Korea.

²Professor, College of Nursing, Ewha Womans University, Seoul, Korea.

Corresponding author: Yang, Sook-Ja. College of Nursing, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea. Tel: +82-2-3277-4652, Fax: +82-2-3277-2850, yangsj@ewha.ac.kr

Received 29 November 2018 Revised 18 April 2019 Accepted 22 April 2019

Korean Academy of Community Health Nursing

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

This study was conducted to develop and test a measurement of the suicidal protection(MSP) for high school students in Korea.

Methods

Thirty-four preliminary items were initially developed based on literature review and focus group interviews. Those items were evaluated by experts for content validity with 31 items yielded. For testing validity and reliability of the measurement, data were collected from 330 high school students in Korea.

Results

The item analysis selected 26 items. One item was deleted additionally through the primary exploratory factor analysis. The final exploratory factor analysis yielded 26 items in six factors such as fear of suicide, self-esteem, emotion regulation, support from others, support from family, and school life, explaining 66.6% of the total variance of the suicidal protection for high school students in Korea. Convergent validity and discriminant validity were supported by construct reliability, average variance extracted estimate, and standardized regression weight. MSP scores were positively associated with economic status, academic record and suicidal ideation. Also, criterion validity was supported through a significant correlation with the Reason for Living Inventory for Adolescent. The Cronbach's α reliability coefficient was .93 for the overall measurement and .72~.86 for the six factors.

Conclusion

The results show that MSP may be valid and reliable for assessing suicidal protection of high school students.

Keywords: Students, Suicide, Epidemiologic measurements

Figures and Tables

Table 1

General Characteristics of Study Participants (N=330)

Table 2

Factor Analysis of Measurement of Suicidal Protection Items (N=330)

Comm.=Communality; KMO=Kaiser-Meyer-Olkin; ^†Reverse-scored items.

Table 3

Group Comparisons between MSP and Academic Performance, Economic Status, and Suicidal Ideation for 12 Month (N=330)

MSP=measurement of suicidal protection.

Table 4

SRW, AVE, CR and Model Fitness according to the CFA

SRW=standardized regression weight; AVE=average variance extracted estimate; CR=construct reliability; CFA=confirmatory factor; RMSEA=root mean square error of approximation; NFI=normed fit index; CFI=comparative fit index; ^†The reverse-scored items.

Table 5

Discriminant Validity by AVE

AVE=average variance extracted estimate; ^‡Squared correlation.

Notes

This article is based on a part of the first author's doctoral thesis from Ewha Womans University.

Appendix

Appendix 1

Measurement of Suicidal Protection (MSP)

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ORCID iDs

Chan Sun Park
https://orcid.org/0000-0003-1669-2980

Sook Ja Yang
https://orcid.org/0000-0001-5014-2419

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