Abstract PO-188: The relationship of intervention attendance, changes in self-efficacy, social support, health behaviors, and weight loss outcomes among overweight Appalachian adults

Author(s):  
Xiaochen Zhang ◽  
Ryan D Baltic ◽  
Abigail Shoben ◽  
Electra D. Paskett
2016 ◽  
Vol 21 (11) ◽  
pp. 2673-2683 ◽  
Author(s):  
Elizabeth G Tovar ◽  
Rebecca L Dekker ◽  
Misook L Chung ◽  
Yevgeniya Gokun ◽  
Debra K Moser ◽  
...  

2020 ◽  
Author(s):  
Ran Xu ◽  
David Cavallo

BACKGROUND Obesity is a known risk factor for cardiovascular disease (CVD) risk factors including hypertension and type II diabetes. Although numerous weight-loss interventions have demonstrated efficacy, there is considerably less evidence about the theoretical mechanisms through which they work. Delivering lifestyle behavior change interventions via social media provides unique opportunities for understanding mechanisms of intervention effects. Server data collected directly from online platforms can provide detailed, real-time behavioral information over the course of intervention programs that can be used to understand how interventions work. OBJECTIVE The objective of this study was to demonstrate how social network analysis can facilitate our understanding of the mechanisms underlying a social-media based weight loss intervention. METHODS This study performed secondary analysis using data from a pilot study that delivered a dietary and physical activity intervention to a group of low-SES participants via Facebook. We mapped out participants’ interaction networks over the 12-week intervention period, and linked participants’ network characteristics (e.g. in-degree, out-degree and network constraint) to participants’ changes in theoretical mediators (i.e. dietary knowledge, perceived social support, self-efficacy) and weight loss using regression analysis. This study also performed mediation analyses to explore how the effects of social network measures on weight loss could be mediated by the aforementioned theoretical mediators. RESULTS 47 participants from two waves completed the study and were included in the analysis. We found that participants creating posts, comments and reactions predicted weight-loss (β=-.94, P=.042); receiving comments positively predicted changes in self-efficacy (β=7.81, P=.009); the degree to which one’s network neighbors are tightly connected with each other weakly predicted changes in perceived social support (β=7.70, P=.08). In addition, change in self-efficacy mediated the relationship between receiving comments and weight-loss (Indirect effect=-.89, P=.017). CONCLUSIONS Our analyses using data from this pilot study have linked participants’ network characteristics with changes in several important study outcomes of interest, such as self-efficacy, social support and weight. Our results point to the potential of using social network analysis to understand the social processes and mechanisms through which online behavioral interventions affects participants’ psychological and behavioral outcomes. Future studies are warranted to validate our results and further explore the relationship between network dynamics and study outcomes in similar and larger trials.


Obesity ◽  
2016 ◽  
Vol 24 (3) ◽  
pp. 568-575 ◽  
Author(s):  
Becky Marquez ◽  
Andrea Anderson ◽  
Rena R. Wing ◽  
Delia S. West ◽  
Robert L. Newton ◽  
...  

Author(s):  
Yeni Puspitasari ◽  
Blasius Boli Lasan ◽  
Arbin Janu Setiyowati

Abstract: This study aims to determine: (1) the relationship of social support to achievement motivation; (2) The relationship of self-efficacy to achievement motivation; (3) The relationship between social support and self-efficacy on achievement motivation (4) The amount of the independent variable's contribution to the dependent. The design of this research is social support and self-efficacy as independent variables, while achievement motivation is the dependent variable. The research population of SMAN 1 Wates students with a sample of 183 students obtained through simple random sampling technique. The research instrument used consisted of a social support scale, a self-efficacy scale, and an achievement motivation scale. The data analysis technique was in the form of descriptive statistics with the results obtained on the social support variable having a percentage value of 74.3 percent in the high category, while in the medium category it was 25.7 percent. The results of self-efficacy get a score of 83.6 percent in the high category, and 16.4 percent in the medium category. Achievement motivation has a value of 79.8 percent, while in the medium category it is 20.2 percent. Then, the effect of the predictor variable on the criteria is 45.4 percent. Overall, it can be seen that there is a significant and positive relationship between social support and self-efficacy together with achievement motivation. Abstrak: Penelitian ini bertujuan untuk mengetahui: (1) Hubungan dukungan sosial terhadap motivasi berprestasi; (2) Hubungan efikasi diri terhadap motivasi berprestasi; (3) Hubungan dukungan sosial dan efikasi diri terhadap motivasi berprestasi (4) Besarnya sumbangan variabel independen terhadap dependen. Rancangan penelitian ini yaitu dukungan sosial dan efikasi diri sebagai variabel bebas, sedangkan motivasi berprestasi sebagai variabel terikat. Populasi penelitian siswa SMAN 1 Wates dengan sampel 183 siswa yang diperoleh melalui teknik simple random sampling. Instrumen penelitian yang digunakan terdiri dari skala dukungan sosial, skala efikasi diri, dan skala motivasi berprestasi. Teknik analisis data berupa statistik deskriptif dengan hasil yang diperoleh pada variabel dukungan sosial mempunyai persentase nilai 74,3 persen kategori tinggi, sedangkan pada kategori sedang 25,7 persen. Hasil dari Efikasi diri mendapatkan nilai sebesar 83,6 persen kategori tinggi, dan kategori sedang 16,4 persen. Motivasi berprestasi memiliki nilai sebesar 79,8 persen, sedangkan pada kategori sedang 20,2 persen. Kemudian, untuk pengaruh variabel prediktor terhadap kriterium yaitu 45,4 persen. Secara keseluruhan dapat diketahui bahwa terdapat hubungan yang signifikan dan positif antara dukungan sosial dan efikasi diri secara bersama-sama terhadap motivasi berprestasi.


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