2.50
Hdl Handle:
http://hdl.handle.net/10755/163391
Category:
Abstract
Type:
Presentation
Title:
Perceived Therapeutic Efficacy Scale: Exercise Version Used in Preeclampsia
Author(s):
Charles, Bashira A.; Schlenk, Elizabeth A.; Kim, Yookyung; Reiser, Lorraine; Patrick, Thelma
Author Details:
Bashira A. Charles, MSN, RN, CRNP, Doctoral Student, University of Pittsburgh School of Nursing, Pittsburgh, Pennsylvania, USA, email: bac64@pitt.edu; Elizabeth A. Schlenk, PhD, RN; Yookyung Kim, PhD; Lorraine Reiser, MSN, RN, CRNP; Thelma Patrick, PhD, RN
Abstract:
Purpose: This study analyzed and described the psychometric properties of the original 10-item and expanded 15-item Perceived Therapeutic Efficacy Scale (PTES, exercise version) adapted for preeclampsia. Theoretical Framework: The PTES measures outcome expectancy (belief that participating in particular actions results in specific outcomes) for a prescribed exercise regimen. According to Social Cognitive Theory, outcome expectancy is a mediator of behavior change and predicts adherence to a treatment/health promotion regimen. Methods (Design, Sample, Setting, Measures, Analysis): The PTES consists of an 11-point Likert scale (0 = no confidence ? 10 = highest confidence). Participants were 83 pregnant women with a history of preeclampsia in a previous pregnancy recruited from a women's hospital at a large university medical center. Participants were enrolled in a clinical trial of an exercise intervention to reduce recurrent preeclampsia. Baseline PTES data were analyzed using Cronbach's alpha, standard error of measurement (SEM), factor analysis, and correlations. Results: Both scales' total and subscale scores had excellent reliability with alphas of .89-.94 and SEMs of .34-.49. Exploratory factor analysis yielded an eigenvalue of 3 revealing the presence of two latent variables (factors) on the 10-item scale and three factors on the 15-item scale (effectiveness of exercise, effectiveness of general health management, and effectiveness of advice from nurses) explaining over 76% of total variance. Whites and married participants consistently scored higher on Factor 2 and Factor 3, than non-whites and single participants. Convergent validity was assessed using average hours exercised per week on the Paffenbarger Physical Activity Questionnaire; no significant correlations were found with the PTES. Conclusions and Implications: The preliminary results of the 10- and 15-item PTES indicated that it is a valid and reliable tool for measuring outcome expectancy for exercise in this population. Additional validity testing is needed. Future exercise studies should consider use of the PTES.
Repository Posting Date:
27-Oct-2011
Date of Publication:
27-Oct-2011
Conference Date:
2006
Conference Name:
18th Annual Scientific Sessions
Conference Host:
Eastern Nursing Research Society
Conference Location:
Cherry Hill, New Jersey
Description:
�New Momentum for Nursing Research: Multidisciplinary Alliances�, held on April 20th -22nd at the Hilton in Cherry Hill, New Jersey
Note:
This is an abstract-only submission. If the author has submitted a full-text item based on this abstract, you may find it by browsing the Virginia Henderson Global Nursing e-Repository by author. If author contact information is available in this abstract, please feel free to contact him or her with your queries regarding this submission. Alternatively, please contact the conference host, journal, or publisher (according to the circumstance) for further details regarding this item. If a citation is listed in this record, the item has been published and is available via open-access avenues or a journal/database subscription. Contact your library for assistance in obtaining the as-published article.

Full metadata record

DC FieldValue Language
dc.type.categoryAbstracten_US
dc.typePresentationen_GB
dc.titlePerceived Therapeutic Efficacy Scale: Exercise Version Used in Preeclampsiaen_GB
dc.contributor.authorCharles, Bashira A.en_US
dc.contributor.authorSchlenk, Elizabeth A.en_US
dc.contributor.authorKim, Yookyungen_US
dc.contributor.authorReiser, Lorraineen_US
dc.contributor.authorPatrick, Thelmaen_US
dc.author.detailsBashira A. Charles, MSN, RN, CRNP, Doctoral Student, University of Pittsburgh School of Nursing, Pittsburgh, Pennsylvania, USA, email: bac64@pitt.edu; Elizabeth A. Schlenk, PhD, RN; Yookyung Kim, PhD; Lorraine Reiser, MSN, RN, CRNP; Thelma Patrick, PhD, RNen_US
dc.identifier.urihttp://hdl.handle.net/10755/163391-
dc.description.abstractPurpose: This study analyzed and described the psychometric properties of the original 10-item and expanded 15-item Perceived Therapeutic Efficacy Scale (PTES, exercise version) adapted for preeclampsia. Theoretical Framework: The PTES measures outcome expectancy (belief that participating in particular actions results in specific outcomes) for a prescribed exercise regimen. According to Social Cognitive Theory, outcome expectancy is a mediator of behavior change and predicts adherence to a treatment/health promotion regimen. Methods (Design, Sample, Setting, Measures, Analysis): The PTES consists of an 11-point Likert scale (0 = no confidence ? 10 = highest confidence). Participants were 83 pregnant women with a history of preeclampsia in a previous pregnancy recruited from a women's hospital at a large university medical center. Participants were enrolled in a clinical trial of an exercise intervention to reduce recurrent preeclampsia. Baseline PTES data were analyzed using Cronbach's alpha, standard error of measurement (SEM), factor analysis, and correlations. Results: Both scales' total and subscale scores had excellent reliability with alphas of .89-.94 and SEMs of .34-.49. Exploratory factor analysis yielded an eigenvalue of 3 revealing the presence of two latent variables (factors) on the 10-item scale and three factors on the 15-item scale (effectiveness of exercise, effectiveness of general health management, and effectiveness of advice from nurses) explaining over 76% of total variance. Whites and married participants consistently scored higher on Factor 2 and Factor 3, than non-whites and single participants. Convergent validity was assessed using average hours exercised per week on the Paffenbarger Physical Activity Questionnaire; no significant correlations were found with the PTES. Conclusions and Implications: The preliminary results of the 10- and 15-item PTES indicated that it is a valid and reliable tool for measuring outcome expectancy for exercise in this population. Additional validity testing is needed. Future exercise studies should consider use of the PTES.en_GB
dc.date.available2011-10-27T11:06:44Z-
dc.date.issued2011-10-27en_GB
dc.date.accessioned2011-10-27T11:06:44Z-
dc.conference.date2006en_US
dc.conference.name18th Annual Scientific Sessionsen_US
dc.conference.hostEastern Nursing Research Societyen_US
dc.conference.locationCherry Hill, New Jerseyen_US
dc.description�New Momentum for Nursing Research: Multidisciplinary Alliances�, held on April 20th -22nd at the Hilton in Cherry Hill, New Jerseyen_US
dc.description.noteThis is an abstract-only submission. If the author has submitted a full-text item based on this abstract, you may find it by browsing the Virginia Henderson Global Nursing e-Repository by author. If author contact information is available in this abstract, please feel free to contact him or her with your queries regarding this submission. Alternatively, please contact the conference host, journal, or publisher (according to the circumstance) for further details regarding this item. If a citation is listed in this record, the item has been published and is available via open-access avenues or a journal/database subscription. Contact your library for assistance in obtaining the as-published article.-
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