De Robertis 2004.

Methods	Multivariate effect sizes adjusted using covariates for discipline, stability of placement, child gender, socioeconomic status, and ethnicity Demographic comparison on child ethnicity, gender, family income. Placement comparison on same placement
Participants	Kinship n = 37 Foster n = 33 Drawn from sample of foster children who are participating in the San Diego Site of LONGSCAN
Interventions	See Table 2
Outcomes	Behavioural Development ‐ Behaviour Problems
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Low risk	Attempt was made to equate the kinship care and foster care groups through controlling for covariates; Evidence on placement characteristics and child demographics was 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; Uncertain if there was 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