Development and psychometric properties of the physical activity scale (PAP-SCT) for pregnant women

Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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JR_HEHP-10-3_007

تاریخ نمایه سازی: 21 تیر 1401

Abstract:

Aims: Although physical activity has many health benefits during pregnancy, few women engage in regular physical activity. The purpose of this study was to test the validity and reliability of a physical activity scale in pregnant women based on social cognitive theory. Methods: A multi-phase scale development method was used to build the scale. To generate a pre-final version of the instrument, face and content validity were measured at the following step. The validation of the instrument was evaluated through a sample of ۲۴۰ pregnant women. Then, the construct validity, internal consistency, test-retest reliability, and Cronbach’s alpha of the scale were calculated. Findings: In the beginning, a ۳۶-item scale was created by undertaking a qualitative phase. This number was lowered to ۲۴ items after content validity. Seven factors emerged from the exploratory factor analysis (outcome expectations, outcome value, self-efficacy, social support, self-regulation, mutual determinant, and behavior) which accounted for ۵۲ percent of the observed variance. The confirmatory factor analysis revealed a model with a suitable fitness for the data. For the subscales, Cronbach's alpha coefficients ranged from ۰.۸۳ to ۰.۹۴, and the Intraclass Correlation Coefficient (ICC) ranged from ۰.۸۰ to ۰.۸۸, which is within acceptable limits. Conclusion: The findings showed that the PAP-SCT is valid and reliable scale that can help us better understand aspects associated to physical activity in pregnant women. As a result, it has the potential to be employed in the future research.  

Authors

Zohreh Arefi

PhD Candidate, Department of Health Promotion and Education, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.

Roya Sadeghi

Professor, Department of Health Promotion and Education, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

Davoud Shojaeizadeh

Professor, Department of Health Promotion and Education, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

Mehdi Yaseri

Associate Professor, Department of Epidemiology and Biostatistics, School of Public Health, TehranUniversity of Medical Sciences, Tehran, Iran

Shirin Shahbazi Sighaldeh

Assistant Professor, Department of Reproductive health, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran.

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