To the Editor: In the article by Dawn I. Velligan, Ph.D., and colleagues (1), the surprising and counterintuitive finding of poorer outcomes in the patients in the active control group (versus the group with naturalistic follow-up and the group undergoing cognitive adaptation training) could be explained on the basis of bias by unblinded assessors who were also involved as clinicians in the interventions. It is otherwise difficult to understand how bringing posters and plants during home visits in the control treatment could have yielded a worsening in positive psychotic symptoms than in the less actively served follow-up group. Since no independent assessments of the nature of the social interactions with the control participants were reported, it is conceivable that their requests for direct assistance were rebuffed or referred to more distant and indifferent treatment teams and that these reactions by staff were experienced by the patients as rejections and antitherapeutic reactions.