Table 2.
Exploratory moderator analyses: adding studies added from author query
| Includes added studies? | Level | k (ES) | Meta-analytic average (SE) | 95% CI | t value (p value) |
|---|---|---|---|---|---|
| No | 2.36* (.05) | ||||
| Local | 40 (121) | − .16 (.04) | − .24, − .08 | ||
| Non-Local | 7 (41) | − .04 (.03) | − .12, .05 | ||
| Yes | 0.83 (.42) | ||||
| Local | 41 (122) | − .18 (.04) | − .27, − .09 | ||
| Non-Local | 9 (49) | − .12 (.05) | − .26, .02 | ||
| No | 1.06 (.30) | ||||
| US | 31 (110) | − .17 (.04) | − .25, − .09 | ||
| Non-US | 16 (55) | − .09 (.07) | − .24, .08 | ||
| Yes | 0.62 (.54) | ||||
| US | 32 (113) | − .19 (.04) | − .27, − .10 | ||
| Non-US | 18 (58) | − .13 (.08) | − .29, .03 | ||
| No | 0.82 (.51) | ||||
| Universal | 43 (156) | − .12 (.03) | − .19, − .05 | ||
| Tertiary | 4 (9) | − .42 (.36) | − 2.48, 1.65 | ||
| Yes | 1.59 (.20) | ||||
| Universal | 45 (161) | − .13 (.04) | − .20, − .06 | ||
| Tertiary | 5 (10) | − .60 (.29) | − 1.57, .36 |
“Includes added studies” column indicates if the results include the additional 3 studies and 6 effect sizes; local: school, school district, or city; non-local: region, state, or nation; k number of studies, ES number of effect sizes, SE standard error, CI confidence interval. t value and p value represent the test statistics from the meta-analytic moderator analyses