Table 1.
Means, standard deviations, and correlations of primary study variables
| Variable | M | SD | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|---|
| 1.Percent Worst Peer Int (SM) | 20.52% | 21.54 | |||||||
| 2. Percent Best Peer Int (SM) | 19.82% | 19.66 | .67 | ||||||
| 3. NA mean | 8.79 | 9.32 | .04 | −.07 | |||||
| 4. PA mean | 49.76 | 23.06 | −.11 | −.17 | −.03 | ||||
| 5. NA React mean (worst) | 21.41 | 15.33 | .06 | −.01 | .68 | .06 | |||
| 6. PA React mean (best) | 61.73 | 23.17 | −.07 | −.07 | .05 | .82 | .26 | ||
| 7. Anxiety | 16.57 | 11.57 | .04 | −.03 | .31 | .02 | .36 | −.01 | |
| 8. Puberty | 3.46 | 1.05 | −.06 | −.00 | .10 | −.15 | .07 | −.02 | .01 |
Note. M and SD are used to represent mean and standard deviation, respectively. Int = Interaction; SM = Social Media; NA = Negative Affect; PA = Positive Affect; React = Reactivity to best or worst peer interaction. Percent of Worst or Best Peer interaction reflects the overall percentage of interactions that occurred on social media compared to in-person. The means of NA and PA (overall and reactivity) reflect the grand mean reported on a scale from 0–100 (most negative/most positive). Anxiety = Baseline anxiety symptoms on the total score of the SCARED. Puberty = Pubertal development according to the PDS.