Psychometric properties of a self-efficacy scale for physical activity in Brazilian adults
To test the validity and reliability of a self-efficacy scale for physical activity (PA) in Brazilian adults. A self-efficacy scale was applied jointly with a multidimensional questionnaire through face-to-face interviews with 1,418 individuals (63.4% women) aged ≥ 18 years. The scale was submitted...
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| Veröffentlicht in: | Revista panamericana de salud pública 2011-04, Vol.29 (4), p.259-266 |
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| creator | Rech, Cassiano Ricardo Sarabia, Tais Taiana Fermino, Rogério César Hallal, Pedro Curi Reis, Rodrigo Siqueira |
| description | To test the validity and reliability of a self-efficacy scale for physical activity (PA) in Brazilian adults.
A self-efficacy scale was applied jointly with a multidimensional questionnaire through face-to-face interviews with 1,418 individuals (63.4% women) aged ≥ 18 years. The scale was submitted to validity (factorial and construct) and reliability analysis (internal consistency and temporal stability). A test-retest procedure was conducted with 74 individuals to evaluate temporal stability.
Exploratory factor analyses revealed two independent factors: self-efficacy for walking and self-efficacy for moderate and vigorous PA (MVPA). Together, these two factors explained 65.4% of the total variance of the scale (20.9% and 44.5% for walking and MVPA, respectively). Cronbach's alpha values were 0.83 for walking and 0.90 for MVPA, indicating high internal consistency. Both factors were significantly and positively correlated (rho ≥ 0.17, P < 0.001) with quality of life indicators (health perception, self-satisfaction, and energy for daily activities), indicating an adequate construct validity.
The scale's validity, internal consistency, and reliability were adequate to evaluate self-efficacy for PA in Brazilian adults. |
| doi_str_mv | 10.1590/S1020-49892011000400007 |
| format | Article |
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A self-efficacy scale was applied jointly with a multidimensional questionnaire through face-to-face interviews with 1,418 individuals (63.4% women) aged ≥ 18 years. The scale was submitted to validity (factorial and construct) and reliability analysis (internal consistency and temporal stability). A test-retest procedure was conducted with 74 individuals to evaluate temporal stability.
Exploratory factor analyses revealed two independent factors: self-efficacy for walking and self-efficacy for moderate and vigorous PA (MVPA). Together, these two factors explained 65.4% of the total variance of the scale (20.9% and 44.5% for walking and MVPA, respectively). Cronbach's alpha values were 0.83 for walking and 0.90 for MVPA, indicating high internal consistency. Both factors were significantly and positively correlated (rho ≥ 0.17, P < 0.001) with quality of life indicators (health perception, self-satisfaction, and energy for daily activities), indicating an adequate construct validity.
The scale's validity, internal consistency, and reliability were adequate to evaluate self-efficacy for PA in Brazilian adults.</description><identifier>EISSN: 1680-5348</identifier><identifier>DOI: 10.1590/S1020-49892011000400007</identifier><identifier>PMID: 21603771</identifier><language>por</language><publisher>United States</publisher><subject>Adolescent ; Adult ; Brazil ; Female ; Humans ; Male ; Middle Aged ; Motor Activity ; Psychometrics ; Reproducibility of Results ; Self Efficacy ; Surveys and Questionnaires ; Young Adult</subject><ispartof>Revista panamericana de salud pública, 2011-04, Vol.29 (4), p.259-266</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21603771$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Rech, Cassiano Ricardo</creatorcontrib><creatorcontrib>Sarabia, Tais Taiana</creatorcontrib><creatorcontrib>Fermino, Rogério César</creatorcontrib><creatorcontrib>Hallal, Pedro Curi</creatorcontrib><creatorcontrib>Reis, Rodrigo Siqueira</creatorcontrib><title>Psychometric properties of a self-efficacy scale for physical activity in Brazilian adults</title><title>Revista panamericana de salud pública</title><addtitle>Rev Panam Salud Publica</addtitle><description>To test the validity and reliability of a self-efficacy scale for physical activity (PA) in Brazilian adults.
A self-efficacy scale was applied jointly with a multidimensional questionnaire through face-to-face interviews with 1,418 individuals (63.4% women) aged ≥ 18 years. The scale was submitted to validity (factorial and construct) and reliability analysis (internal consistency and temporal stability). A test-retest procedure was conducted with 74 individuals to evaluate temporal stability.
Exploratory factor analyses revealed two independent factors: self-efficacy for walking and self-efficacy for moderate and vigorous PA (MVPA). Together, these two factors explained 65.4% of the total variance of the scale (20.9% and 44.5% for walking and MVPA, respectively). Cronbach's alpha values were 0.83 for walking and 0.90 for MVPA, indicating high internal consistency. Both factors were significantly and positively correlated (rho ≥ 0.17, P < 0.001) with quality of life indicators (health perception, self-satisfaction, and energy for daily activities), indicating an adequate construct validity.
The scale's validity, internal consistency, and reliability were adequate to evaluate self-efficacy for PA in Brazilian adults.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Brazil</subject><subject>Female</subject><subject>Humans</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Motor Activity</subject><subject>Psychometrics</subject><subject>Reproducibility of Results</subject><subject>Self Efficacy</subject><subject>Surveys and Questionnaires</subject><subject>Young Adult</subject><issn>1680-5348</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo1UEtLxDAYDIK46-pf0Nw8Vb80zaNHXVwVFhTUi5eS5sFG0m1NUqH-eguuh2FgGIaZQeiSwDVhNdy8EiihqGpZl0AIAFQzQByhJeESCkYruUCnKX0ClIRTcoIWMwMVgizRx0ua9K7vbI5e4yH2g43Z24R7hxVONrjCOue10hNOWgWLXR_xsJvSrAWsdPbfPk_Y7_FdVD8-eLXHyowhpzN07FRI9vzAK_S-uX9bPxbb54en9e22GEgFuWAaCNjWGGWodJxp3TJn6LysUrTmDpiknLFatGVNNG9BWmdqAYYablWp6Apd_eXO7b9Gm3LT-aRtCGpv-zE1UvCy4kzA7Lw4OMe2s6YZou9UnJr_O-gvxFVibw</recordid><startdate>201104</startdate><enddate>201104</enddate><creator>Rech, Cassiano Ricardo</creator><creator>Sarabia, Tais Taiana</creator><creator>Fermino, Rogério César</creator><creator>Hallal, Pedro Curi</creator><creator>Reis, Rodrigo Siqueira</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>201104</creationdate><title>Psychometric properties of a self-efficacy scale for physical activity in Brazilian adults</title><author>Rech, Cassiano Ricardo ; Sarabia, Tais Taiana ; Fermino, Rogério César ; Hallal, Pedro Curi ; Reis, Rodrigo Siqueira</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p140t-5c010ebddad38f65ccb5fd35904a396f058365597b291c6b08efd970d3d6ea2a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>por</language><creationdate>2011</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Brazil</topic><topic>Female</topic><topic>Humans</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Motor Activity</topic><topic>Psychometrics</topic><topic>Reproducibility of Results</topic><topic>Self Efficacy</topic><topic>Surveys and Questionnaires</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rech, Cassiano Ricardo</creatorcontrib><creatorcontrib>Sarabia, Tais Taiana</creatorcontrib><creatorcontrib>Fermino, Rogério César</creatorcontrib><creatorcontrib>Hallal, Pedro Curi</creatorcontrib><creatorcontrib>Reis, Rodrigo Siqueira</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Revista panamericana de salud pública</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rech, Cassiano Ricardo</au><au>Sarabia, Tais Taiana</au><au>Fermino, Rogério César</au><au>Hallal, Pedro Curi</au><au>Reis, Rodrigo Siqueira</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Psychometric properties of a self-efficacy scale for physical activity in Brazilian adults</atitle><jtitle>Revista panamericana de salud pública</jtitle><addtitle>Rev Panam Salud Publica</addtitle><date>2011-04</date><risdate>2011</risdate><volume>29</volume><issue>4</issue><spage>259</spage><epage>266</epage><pages>259-266</pages><eissn>1680-5348</eissn><abstract>To test the validity and reliability of a self-efficacy scale for physical activity (PA) in Brazilian adults.
A self-efficacy scale was applied jointly with a multidimensional questionnaire through face-to-face interviews with 1,418 individuals (63.4% women) aged ≥ 18 years. The scale was submitted to validity (factorial and construct) and reliability analysis (internal consistency and temporal stability). A test-retest procedure was conducted with 74 individuals to evaluate temporal stability.
Exploratory factor analyses revealed two independent factors: self-efficacy for walking and self-efficacy for moderate and vigorous PA (MVPA). Together, these two factors explained 65.4% of the total variance of the scale (20.9% and 44.5% for walking and MVPA, respectively). Cronbach's alpha values were 0.83 for walking and 0.90 for MVPA, indicating high internal consistency. Both factors were significantly and positively correlated (rho ≥ 0.17, P < 0.001) with quality of life indicators (health perception, self-satisfaction, and energy for daily activities), indicating an adequate construct validity.
The scale's validity, internal consistency, and reliability were adequate to evaluate self-efficacy for PA in Brazilian adults.</abstract><cop>United States</cop><pmid>21603771</pmid><doi>10.1590/S1020-49892011000400007</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
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| ispartof | Revista panamericana de salud pública, 2011-04, Vol.29 (4), p.259-266 |
| issn | 1680-5348 |
| language | por |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Adolescent Adult Brazil Female Humans Male Middle Aged Motor Activity Psychometrics Reproducibility of Results Self Efficacy Surveys and Questionnaires Young Adult |
| title | Psychometric properties of a self-efficacy scale for physical activity in Brazilian adults |
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