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Psychometric analysis of the Salutogenic Health Indicator Scale (SHIS) in adolescents

Garmy, Pernilla LU ; Berg, Agneta LU ; Clausson, Eva K. LU ; Hagell, Peter LU and Jakobsson, Ulf LU (2017) In Scandinavian Journal of Public Health1999-01-01+01:00 45(3). p.253-259
Abstract

Aim: The aim of this study was to test the psychometric properties of the Salutogenic Health Indicator Scale (SHIS) in an adolescent population. Methods: The investigation was performed among Swedish students aged 13-15 years (n = 817; 58% girls). The SHIS was assessed for respondent acceptability, and its psychometric properties were evaluated according to classical test theory (regarding unidimensionality, targeting, reliability, and external construct validity). Results: The adolescents found it easy to complete the questionnaire, which was completed in an average of 4 minutes. Exploratory factor analysis, which is based on polychoric correlations, identified one factor, supporting the instrument's unidimensionality. Floor/ceiling... (More)

Aim: The aim of this study was to test the psychometric properties of the Salutogenic Health Indicator Scale (SHIS) in an adolescent population. Methods: The investigation was performed among Swedish students aged 13-15 years (n = 817; 58% girls). The SHIS was assessed for respondent acceptability, and its psychometric properties were evaluated according to classical test theory (regarding unidimensionality, targeting, reliability, and external construct validity). Results: The adolescents found it easy to complete the questionnaire, which was completed in an average of 4 minutes. Exploratory factor analysis, which is based on polychoric correlations, identified one factor, supporting the instrument's unidimensionality. Floor/ceiling effects were 1/2 3.3%. Reliability estimates yielded a Cronbach's alpha value of 0.93; the test-retest reliability (n = 50; 2-week interval) coefficients were 0.89 for the total SHIS score and 0.52-0.79 for item scores. Spearman correlations with other variables were based on a priori expectations (self-rated general health, 0.595; depressive symptoms, '0.773; anxiety, '0.577; and sleep problems, 0.519). Conclusions: Our observations support both the acceptability and the psychometric properties of the SHIS as a brief, unidimensional assessment tool for salutogenic health in adolescents. Further studies using modern test theory are needed to better understand the measurement properties of the SHIS, including the functioning of its response categories and its comparability between adolescents and adults.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
adolescents, Psychometric evaluation, salutogenic health indicator scale
in
Scandinavian Journal of Public Health1999-01-01+01:00
volume
45
issue
3
pages
7 pages
publisher
Taylor & Francis
external identifiers
  • scopus:85018724592
  • wos:000400160200007
ISSN
1403-4948
DOI
10.1177/1403494816680801
language
English
LU publication?
yes
id
c8dd3499-633d-4538-9bee-7fe253216e3c
date added to LUP
2017-06-08 14:19:47
date last changed
2018-01-07 12:06:45
@article{c8dd3499-633d-4538-9bee-7fe253216e3c,
  abstract     = {<p>Aim: The aim of this study was to test the psychometric properties of the Salutogenic Health Indicator Scale (SHIS) in an adolescent population. Methods: The investigation was performed among Swedish students aged 13-15 years (n = 817; 58% girls). The SHIS was assessed for respondent acceptability, and its psychometric properties were evaluated according to classical test theory (regarding unidimensionality, targeting, reliability, and external construct validity). Results: The adolescents found it easy to complete the questionnaire, which was completed in an average of 4 minutes. Exploratory factor analysis, which is based on polychoric correlations, identified one factor, supporting the instrument's unidimensionality. Floor/ceiling effects were 1/2 3.3%. Reliability estimates yielded a Cronbach's alpha value of 0.93; the test-retest reliability (n = 50; 2-week interval) coefficients were 0.89 for the total SHIS score and 0.52-0.79 for item scores. Spearman correlations with other variables were based on a priori expectations (self-rated general health, 0.595; depressive symptoms, '0.773; anxiety, '0.577; and sleep problems, 0.519). Conclusions: Our observations support both the acceptability and the psychometric properties of the SHIS as a brief, unidimensional assessment tool for salutogenic health in adolescents. Further studies using modern test theory are needed to better understand the measurement properties of the SHIS, including the functioning of its response categories and its comparability between adolescents and adults.</p>},
  author       = {Garmy, Pernilla and Berg, Agneta and Clausson, Eva K. and Hagell, Peter and Jakobsson, Ulf},
  issn         = {1403-4948},
  keyword      = {adolescents,Psychometric evaluation,salutogenic health indicator scale},
  language     = {eng},
  month        = {05},
  number       = {3},
  pages        = {253--259},
  publisher    = {Taylor & Francis},
  series       = {Scandinavian Journal of Public Health1999-01-01+01:00},
  title        = {Psychometric analysis of the Salutogenic Health Indicator Scale (SHIS) in adolescents},
  url          = {http://dx.doi.org/10.1177/1403494816680801},
  volume       = {45},
  year         = {2017},
}