randomised controlled trials

The aim of this review is to determine whetherrandomised controlled trials (RCTs) lead to the same effect size and variance as non-randomised studies (NRSs) of similar policy interventions; and whether these findings can be explained by other factors associated with the interventions or their evaluation.This systematic review was published by EPPI-Centre in 2011.Systematic reviews aim to find as much as possible of the research relevant to the particular research questions, and use explicit methods to identify what can reliably be said on the basis of these studies.

Briefly reports on the findings of a study which aimed to evaluate the effect of a video decision support tool on the preferences for future medical care in older people if they develop advanced dementia, and the stability of those preferences after six weeks.

Report of a study which tested the cost-effectiveness of two programmes intended to support adopters who were parenting a child recently placed from care, and exhibiting emotional or behavioural difficulties, and conducted a qualitative analysis of the intervention process.