Roggman, L. A., Boyce, L. K., Cook, G. A., Christiansen, K., & Jones, D. (2004). Playing with daddy: Social toy play, Early Head Start, and developmental outcomes. Fathering, 2(1), 83-108.
Model(s): Early Head Start—Home-based option
Study design characteristics contributing to rating
| Design | Attrition | Baseline equivalence | Confounding factors? | Valid, reliable measures? |
|---|---|---|---|---|
| Randomized controlled trial | High |
Not established on race/ethnicity or SES; outcomes not assessable at baseline. |
None |
Not assessed in manuscripts reviewed under Handbook of Procedures and Standards, Version 1 |