Reliability, validity and internal consistency of social support and self-efficacy scales for physical activity in adolescents with 10 to 14 years of age.

Publisher: Sociedade De Pediatria De Sao Paulo Country of Publication: Brazil NLM ID: 9109353 Publication Model: eCollection Cited Medium: Internet ISSN: 1984-0462 (Electronic) Linking ISSN: 01030582 NLM ISO Abbreviation: Rev Paul Pediatr Subsets: MEDLINE

Publication: 2017- : Sao Paulo : Sociedade De Pediatria De Sao Paulo
Original Publication: Sao Paulo : Sociedade De Pediatria De Sao Paulo

Self Efficacy* ; Social Support*; Adolescent ; Child ; Exercise ; Female ; Humans ; Male ; Reproducibility of Results ; Surveys and Questionnaires

Objective: To analyze the reliability, validity and internal consistency of the physical activity social support (SSS) and self-efficacy (SES) scales among adolescents aged 10-14 years.
Methods: The reliability study included 171 adolescents (mean age=12.3±1.0 years, 59.6% female) and validity and consistency study with 1,107 (mean age=12.0±1.0 years, 52.7% female). The SSS had 15 items and the SES eight items. Reliability was determined by Spearman's correlation analysis (rho) and validity and internal consistency by factor analysis (exploratory - EFA and confirmatory - CFA) and the composite reliability (CR), respectively.
Results: The reliability of SSS (father: rho=0.80; p<0.001 | mother: rho=0.76; p<0.001 | friends: rho=0.75; p<0.001) and SES (rho=0.72; p<0.001) were considered high. In the EFA, three factors were identified for the SSS (father, mother and friends - five items each) and one factor for SES (five items), confirmed in the CFA. Quality parameters of adjustment in the final models were satisfactory for SSS (chi-square=240.5 [p<0.001]; root mean square residual - RMR=0.05; root mean square error of approximation - RMSEA=0.04 [90%CI 0.04-0.05]; goodness of fit index - GFI=0.97; adjusted goodness of fit index - AGFI=0.96 and comparative fit index - CFI=0.97) and SES (chi-square=5.4 [p=0.07]; RMR=0.01; RMSEA=0.04 [90%CI 0.00-0.08]; GFI=0.99; AGFI=0.99 and CFI=0.97). Internal consistency was considered satisfactory for SSS (CR: father=0.79, mother=0.77, friends=0.78) and low for SES (CR=0.38).
Conclusions: The scales showed satisfactory levels of reliability and of construct validity. However, only the SSS showed adequate levels of internal consistency.

Public Health Nutr. 2012 Nov;15(11):2100-9. (PMID: 22717373)
J Sci Med Sport. 2009 Jan;12(1):141-7. (PMID: 17884728)
Pediatr Exerc Sci. 2009 Aug;21(3):291-304. (PMID: 19827453)
Lancet. 2016 Jun 11;387(10036):2423-78. (PMID: 27174304)
Health Educ Res. 2014 Oct;29(5):822-39. (PMID: 24812148)
BMC Public Health. 2020 Jun 22;20(1):979. (PMID: 32571271)
Health Psychol. 2013 Jun;32(6):666-74. (PMID: 22888813)
Children (Basel). 2020 Mar 20;7(3):. (PMID: 32245103)
Am J Prev Med. 2001 Jul;21(1):48-51. (PMID: 11418257)
Lancet. 2016 Sep 24;388(10051):1325-36. (PMID: 27475270)
J Sports Sci. 2015;33(18):1942-51. (PMID: 25751023)
Lancet. 2012 Jul 21;380(9838):258-71. (PMID: 22818938)
Prev Med Rep. 2014 Oct 16;1:48-52. (PMID: 26844039)
Eur J Sport Sci. 2018 May;18(4):569-578. (PMID: 29400618)
Cad Saude Publica. 2008 Apr;24(4):721-36. (PMID: 18392349)
Am J Health Behav. 2006 May-Jun;30(3):278-89. (PMID: 16712442)
Rev Bras Epidemiol. 2014 Apr-Jun;17(2):355-70. (PMID: 24918409)
Cien Saude Colet. 2018 Jul;23(7):2443-2451. (PMID: 30020396)
Biometrics. 1977 Mar;33(1):159-74. (PMID: 843571)

Date Created: 20210908 Date Completed: 20211210 Latest Revision: 20211214

20231215

PMC8432148

10.1590/1984-0462/2022/40/2020274

34495275