Table 4. Associations of NSES and the amount of computer exposure: Correlation and 3 step prediction model statistics.
| Outcome variables—computer exposure | Spearman’s rho correlation | Individual R squared change (Step 1) | Family R squared change (Step 2) | NSES R squared change Step 3) | Overall model R squared | Overall model F and p |
|---|---|---|---|---|---|---|
| School | ||||||
| Weekly hours | .086** | .073** | .008* | .002 | .083** | 8.93, <.001 |
| Monthly frequency | .148** | .077** | .004 | .018** | .100** | 11.27, <.001 |
| Usual duration | -.033 | .079** | .004 | .001 | .083** | 9.07, <.001 |
| Longest duration | .088** | .049** | .002 | .005* | .055** | 5.84, <.001 |
| Home | ||||||
| Weekly hours | -.157** | .199** | .045** | .011** | .255** | 33.09, <.001 |
| Monthly frequency | -.036 | .268** | .011** | .000 | .279** | 39.07, <.001 |
| Usual duration | -.220** | .198** | .027** | .029** | .254** | 34.40, <.001 |
| Longest duration | -.138** | .244** | .014** | .010** | .268** | 36.89, <.001 |
Note.
* = p <.05,
** = p <.001.
NSES = neighbourhood socioeconomic status.