Background: Hastings (2010) has recently emphasised 3 aspects in the training of staff who serve clients with mild to moderate intellectual disability and challenging behaviour (CB): Staff attitudes, self-awareness, and clients' perspectives. This study investigates whether programs include these aspects. Method: A systematic search yielded 11 relevant articles. Results: Generally, all programs aimed to improve staff knowledge and skills. Client variables concerned frequencies and severities of CB. None of the studies included clients' perspectives or staff attitudes and self-awareness. Conclusions: The fact that staff attitudes and awareness or clients' perspectives were not among the main goals of the training studies suggests that recent views of effective treatment of CB are not yet the object of scientific study. Given the acknowledgment of these aspects, it is warranted that future research focuses upon these recent insights.