Table 5. Effects of Head Start REDI on Teaching Quality: Linguistic Support in Three Classroom Settings.
| Intervention Coefficient | Standard Error | p-value | ES (d) | |
|---|---|---|---|---|
| Book-Reading | ||||
| Statements | 1.14 | .56 | .04 | .52 |
| Questions | .99 | .41 | .02 | .61 |
| Directives (log) | .12 | .08 | .14 | |
| Decontextualized utterances (log) | -.03 | .09 | .74 | |
| Richness-Sensitivity (rating) | .26 | .14 | .05 | .50 |
| Free Play | ||||
| Statements | 1.63 | .48 | .001 | .81 |
| Questions | .64 | .30 | .03 | .47 |
| Directives (log) | .04 | .08 | .66 | |
| Decontextualized utterances (log) | .19 | .08 | .01 | .54 |
| Richness-Sensitivity (rating) | .26 | .13 | .05 | .45 |
| Mealtime | ||||
| Statements | 1.05 | .44 | .02 | .59 |
| Questions | 1.44 | .36 | .000 | .97 |
| Directives (log) | -.02 | .08 | .78 | |
| Decontextualized utterances (log) | .42 | .13 | .001 | .73 |
| Richness-Sensitivity (rating) | .39 | .13 | .003 | .64 |
Note. Scores for directives and decontextualized utterances were log-transformed prior to analysis to reduce skewness. All models included main effects for cohort and setting.