Perceived Stress Scale: confirmatory factor analysis of the PSS14 and PSS10 versions in two samples of pregnant women from the BRISA cohort
This study aimed to assess the dimensional structure, reliability, convergent validity, discriminant validity, and scalability of the Perceived Stress Scale (PSS). The sample consisted of 1,447 pregnant women in São Luís (Maranhão State) and 1,400 in Ribeirão Preto (São Paulo State), Brazil. The 14...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz
2017-12-01
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| Series: | Cadernos de Saúde Pública |
| Subjects: | |
| Online Access: | http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0102-311X2017001505007&lng=en&tlng=en |
| _version_ | 1818061612360138752 |
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| author | Ana Valéria Carvalho Pires Yokokura Antônio Augusto Moura da Silva Juliana de Kássia Braga Fernandes Cristina Marta Del-Ben Felipe Pinheiro de Figueiredo Marco Antonio Barbieri Heloisa Bettiol |
| author_facet | Ana Valéria Carvalho Pires Yokokura Antônio Augusto Moura da Silva Juliana de Kássia Braga Fernandes Cristina Marta Del-Ben Felipe Pinheiro de Figueiredo Marco Antonio Barbieri Heloisa Bettiol |
| author_sort | Ana Valéria Carvalho Pires Yokokura |
| collection | DOAJ |
| description | This study aimed to assess the dimensional structure, reliability, convergent validity, discriminant validity, and scalability of the Perceived Stress Scale (PSS). The sample consisted of 1,447 pregnant women in São Luís (Maranhão State) and 1,400 in Ribeirão Preto (São Paulo State), Brazil. The 14 and 10-item versions of the scale were assessed using confirmatory factor analysis, using weighted least squares means and variance (WLSMV). In both cities, the two-factor models (positive factors, measuring resilience to stressful situations, and negative factors, measuring stressful situations) showed better fit than the single-factor models. The two-factor models for the complete (PSS14) and reduced scale (PSS10) showed good internal consistency (Cronbach’s alpha ≥ 0.70). All the factor loadings were ≥ 0.50, except for items 8 and 12 of the negative dimension and item 13 of the positive dimension. The correlations between both dimensions of stress and psychological violence showed the expected magnitude (0.46-0.59), providing evidence of an adequate convergent construct validity. The correlations between the scales’ positive and negative dimensions were around 0.74-0.78, less than 0.85, which suggests adequate discriminant validity. Extracted mean variance and scalability were slightly higher for PSS10 than for PSS14. The results were consistent in both cities. In conclusion, the single-factor solution is not recommended for assessing stress in pregnant women. The reduced, 10-item two-factor scale appears to be more appropriate for measuring perceived stress in pregnant women. |
| first_indexed | 2024-12-10T13:51:05Z |
| format | Article |
| id | doaj.art-9de1096cb4b74a78bcc3c4950c003536 |
| institution | Directory Open Access Journal |
| issn | 1678-4464 |
| language | English |
| last_indexed | 2024-12-10T13:51:05Z |
| publishDate | 2017-12-01 |
| publisher | Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz |
| record_format | Article |
| series | Cadernos de Saúde Pública |
| spelling | doaj.art-9de1096cb4b74a78bcc3c4950c0035362022-12-22T01:46:11ZengEscola Nacional de Saúde Pública, Fundação Oswaldo CruzCadernos de Saúde Pública1678-44642017-12-01331210.1590/0102-311x00184615S0102-311X2017001505007Perceived Stress Scale: confirmatory factor analysis of the PSS14 and PSS10 versions in two samples of pregnant women from the BRISA cohortAna Valéria Carvalho Pires YokokuraAntônio Augusto Moura da SilvaJuliana de Kássia Braga FernandesCristina Marta Del-BenFelipe Pinheiro de FigueiredoMarco Antonio BarbieriHeloisa BettiolThis study aimed to assess the dimensional structure, reliability, convergent validity, discriminant validity, and scalability of the Perceived Stress Scale (PSS). The sample consisted of 1,447 pregnant women in São Luís (Maranhão State) and 1,400 in Ribeirão Preto (São Paulo State), Brazil. The 14 and 10-item versions of the scale were assessed using confirmatory factor analysis, using weighted least squares means and variance (WLSMV). In both cities, the two-factor models (positive factors, measuring resilience to stressful situations, and negative factors, measuring stressful situations) showed better fit than the single-factor models. The two-factor models for the complete (PSS14) and reduced scale (PSS10) showed good internal consistency (Cronbach’s alpha ≥ 0.70). All the factor loadings were ≥ 0.50, except for items 8 and 12 of the negative dimension and item 13 of the positive dimension. The correlations between both dimensions of stress and psychological violence showed the expected magnitude (0.46-0.59), providing evidence of an adequate convergent construct validity. The correlations between the scales’ positive and negative dimensions were around 0.74-0.78, less than 0.85, which suggests adequate discriminant validity. Extracted mean variance and scalability were slightly higher for PSS10 than for PSS14. The results were consistent in both cities. In conclusion, the single-factor solution is not recommended for assessing stress in pregnant women. The reduced, 10-item two-factor scale appears to be more appropriate for measuring perceived stress in pregnant women.http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0102-311X2017001505007&lng=en&tlng=enGestantesEstresse PsicológicoAnálise Fatorial |
| spellingShingle | Ana Valéria Carvalho Pires Yokokura Antônio Augusto Moura da Silva Juliana de Kássia Braga Fernandes Cristina Marta Del-Ben Felipe Pinheiro de Figueiredo Marco Antonio Barbieri Heloisa Bettiol Perceived Stress Scale: confirmatory factor analysis of the PSS14 and PSS10 versions in two samples of pregnant women from the BRISA cohort Cadernos de Saúde Pública Gestantes Estresse Psicológico Análise Fatorial |
| title | Perceived Stress Scale: confirmatory factor analysis of the PSS14 and PSS10 versions in two samples of pregnant women from the BRISA cohort |
| title_full | Perceived Stress Scale: confirmatory factor analysis of the PSS14 and PSS10 versions in two samples of pregnant women from the BRISA cohort |
| title_fullStr | Perceived Stress Scale: confirmatory factor analysis of the PSS14 and PSS10 versions in two samples of pregnant women from the BRISA cohort |
| title_full_unstemmed | Perceived Stress Scale: confirmatory factor analysis of the PSS14 and PSS10 versions in two samples of pregnant women from the BRISA cohort |
| title_short | Perceived Stress Scale: confirmatory factor analysis of the PSS14 and PSS10 versions in two samples of pregnant women from the BRISA cohort |
| title_sort | perceived stress scale confirmatory factor analysis of the pss14 and pss10 versions in two samples of pregnant women from the brisa cohort |
| topic | Gestantes Estresse Psicológico Análise Fatorial |
| url | http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0102-311X2017001505007&lng=en&tlng=en |
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