Bayes factors qualified the indirect effect paths as moderately supported by the data for drive for thinness and for body dissatisfaction (BFten = 7.46, see Data S1). The two indirect effects of Instagram-photo activity on both outcome variables through the mediating role of appearance-related comparisons on Instagram did not significantly differ from each other, a•b1–a•bdos = 0.02, SE = 0.03 and p = .43. The two indirect effects can be constrained to be equally strong without significant loss of model fit (scaled Chi square difference test: ?? 2 = .714, df = 1 and p = .40; difference between Bayesian Information Criterion: ?BIC = 4.09; a•b1 = a•b2 = .16, SE = .06 and p = .01; Figure 1d).
A post-hoc Monte Carlo fuel data to own mediation shown our very own try attained enough stamina: .86 and you may .79 to own push having thinness and the body dissatisfaction bills, correspondingly.
6.step 3 Serial mediation analyses
I examined the indirect results of Instagram-pictures craft on-drive to have thinness and the body disappointment owing to appearance-related evaluations to your Instagram and from the internalization and of beauty standards (Shape 2a).
As regards drive for thinness, Instagram-photo activity was positively associated with appearance-related comparisons on Instagram, a1 = 0.31, SE = 0.twelve, p = .01. Instagram-photo activity was not associated with the internalization of beauty standards, a2 = ?0.09, SE = 0.1 and p = .43. Appearance-related comparisons on Instagram were positively associated with internalization of beauty standards, d21 = 0.87, SE = 0.09 and p < .001. 12 = 0.44, SE = 0.09 and p < .001, while appearance-related comparisons on Instagram were not associated with drive for thinness, beleven = 0.19, SE = 0.12 and p = .11. The direct effect of Instagram-photo activity on drive for thinness was not significant, c? = ?0.12, SE = 0.12 and p = .29.
According to Hypothesis 4a, the indirect effect of Instagram-photo activity on drive for thinness, first through appearance-related comparisons on Instagram and then, through internalization of beauty standards, was significant, a1•d21•b12 = 0.12, SE = 0.05 and p = .02 (Figure 2b).
As for body dissatisfaction, both appearance-related comparisons on Instagram, b21 = 0.29, SE = 0.10 and p = .003 and internalization of beauty standards, btwenty two = 0.24, SE = 0.07 and p = .001 were positively associated with body dissatisfaction. The direct effect of Instagram-photo activity was not significant, c? = ?.012, SE = 0.10 and p = .20.
In line with Hypothesis 4b, the indirect effect of Instagram-photo activity on body dissatisfaction, first through appearance-related comparisons on Instagram then through internalization of beauty standards, was significant, a1•d21•b22 = 0.07, SE = 0.03 and p = .04 (see Figure 2b and Data S1 for results concerning other indirect paths).
Internalization of beauty standards had a significantly greater effect on drive for thinness than body dissatisfaction (b12 ? b22 = 0.20, SE = 0.08, p = .01). Parallel mediation paths involving appearance-related comparisons on Instagram and internalization of beauty standards, as well as direct effects of Instagram-photo activity on both outcome variables, could be set to zero (i.e., a2 = b11 = b21 = 0; c? = c? = 0) without any significant loss of model fit (scaled Chi square difference test: ?? 2 = 8.47, df = 5 and p = .13; difference on Bayesian Information Criterion: ?BIC = 14.1; Figure 2c).
A blog post-hoc Monte Carlo power data for serial mediation models revealed that all of our test achieved sufficient stamina: .93 and you can .94 having drive to own thinness and body frustration scales, correspondingly.
7 Conversation
Inside studies, i replicated the outcome away from Study step 1: appearance-relevant comparisons towards the Instagram mediated the fresh association between Instagram-photos craft and you will one another push to possess thinness and body frustration. Moreover, Analysis dos showed that Instagram-images passion is actually related to one another push getting thinness and body dissatisfaction primarily owing to physical appearance-associated reviews to your Instagram and you will internalization regarding charm conditions (Hypotheses 4a and 4b). Together, these types of results displayed that women who had so much more extreme Instagram-photos activity was basically expected to highly practice looks-associated contrasting, which was basically for the increased levels of muscles issues. It trend out-of performance is affirmed once we projected an effective serial mediation model for drive for thinness and body disappointment concurrently.