Evidence map›Paper›PMID 30185171›Full record

ArticleBMC public health2018

Psychometrics of the self-efficacy for physical activity scale among a Latina women sample.

Andrea S Mendoza-Vasconez, Becky Marquez, Tanya J Benitez, Bess H Marcus

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in BMC public health, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06170866 (Peer Partners to Improve Physical Activity in Older Latino and Latina Adults With Parkinson's Disease.), which is not on this map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.6field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT06170866 nacompletednot on this mapstarted 2023, after this paper: background citation

Peer Partners to Improve Physical Activity in Older Latino and Latina Adults With Parkinson's Disease.

TypeinterventionalSponsorUConn HealthRan2023 to 2024Enrolled10ConditionsParkinson DiseaseArmsSocially supported physical activity
3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 29 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Andrea S Mendoza-VasconezDepartment of Family Medicine & Public Health, University of California San Diego, 9500 Gilman Drive, San Diego, CA, 92093-0725, USA. asm015@ucsd.edu.ORCID http://orcid.org/0000-0002-2665-8631
Becky MarquezDepartment of Family Medicine & Public Health, University of California San Diego, 9500 Gilman Drive, San Diego, CA, 92093-0725, USA.
Tanya J BenitezDepartment of Family Medicine & Public Health, University of California San Diego, 9500 Gilman Drive, San Diego, CA, 92093-0725, USA.
Bess H MarcusDepartment of Family Medicine & Public Health, University of California San Diego, 9500 Gilman Drive, San Diego, CA, 92093-0725, USA.
University of California San Diego · USBrown University · USSan Diego State University · US

Funding

Promoting Physical Activity in Latinas via lnteractive Web-based TechnologyR01CA159954 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MARCUS, BESS HYA · 2011 to 2022
$7.2M
UCSD Integrated Cardiovascular Epidemiology FellowshipT32HL079891 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Matthew A Allison · 2007 to 2026
$6.7M
Improving communication and collaboration for weight management in mother-daughter dyadsK01HL130726 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MARQUEZ, BECKY · 2016 to 2020
$752k
NCI NIH HHS 5R01CA159954NCI NIH HHS R01 CA159954NHLBI NIH HHS 2 T32 HL079891-11NHLBI NIH HHS K01 HL130726NHLBI NIH HHS T32 HL079891
6 · The paper itself

Abstract

backgroundEven though Latinos have become a priority population for the promotion of physical activity in the United States, several widely used scales in physical activity promotion research have not been validated among this population, particularly in Spanish. This study aims to assess the validity and other psychometrics of the Self-Efficacy for Physical Activity scale among a sample of Spanish-speaking Latina women who participated in the Pasos Hacia La Salud intervention. We also explored alternatives for scale simplification.

methodsData from 205 women corresponding to baseline, 6-month, and 12-month time points were analyzed. Internal consistency was assessed. A series of Spearman correlations, t-tests, linear regressions, and logistic regressions were used to assess the concurrent and predictive validity of the Self Efficacy for Physical Activity scale against both self-report and accelerometer-measured physical activity, using both continuous and categorical outcome data. Item Response Theory and factor analysis methods were used to explore alternatives to simplify the scale. Psychometric tests were repeated with the simplified scale.

resultsCronbach's alpha for the original scale was .72, .76, and .78 for baseline, 6-month, and 12-month data respectively. All concurrent validity tests conducted with 6-month and 12-month data, but not with baseline data, were statistically significant. Self-efficacy at 6 months was also predictive of physical activity at 12 months for all tests except one. Based on plots of Option Characteristic Curves, a modified version of the scale was created. Psychometric results of the modified scale were similar to those of the original scale.

conclusionsThis study confirmed the scale's reliability and validity, and revealed that the scale's accuracy improves when some response items are collapsed, which is an important finding for future research among populations with low literacy levels.

Indexed as

ExerciseSelf EfficacySurveys and QuestionnairesAdultFactor Analysis, StatisticalFemaleHispanic or LatinoHumansMiddle AgedPsychometricsReproducibility of ResultsExerciseFactor analysisHealthHispanicIRTReliabilityValidity

Identifiers

PMID30185171
PMCPMC6125999
OpenAlexW2891452253

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.