Rubin 2008.

Methods	Multivariate effect sizes adjusted using covariates for placement stability, baseline risk, and reunification status
Participants	Kinship n = 599 Foster n = 584 National sample drawn from NSCAW for children involved with the child welfare system from October 1999 to December 2000
Interventions	See Table 2
Outcomes	Behavioural Development ‐ Behaviour Problems Placement Stability ‐ Placement Disruption
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	Attempt was made to equate the kinship care and foster care groups through controlling for covariates; No evidence reported on the comparability of the groups
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Uncertain if kinship care and foster care groups experienced different exposure to the intervention; Uncertain if groups received different services during placement
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Uncertain if kinship care and foster care groups were defined in same way; There was no evidence of biased assessment resulting from the type of placement
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	All participants were not accounted for in the reporting of results; Uncertain if attrition could have influenced the results
Selective reporting (reporting bias)	Low risk	Instrumentation used to measure the outcomes was specified completely; Reliability and/or validity information was reported for instrumentation