Although the findings were compelling, the study troubled committee members because it was partly "unblinded," meaning that the patients' doctors knew which treatments they were taking, although the scientists analyzing the data did not.
Guided by this perspective, the present study troubled the common thinking concerning how families of children with disabilities are viewed as powerless and vulnerable individuals in practice albeit legislation's intention.
Marian L. Tupy is a policy analyst at the Cato Institute's Center for Global Liberty and Prosperity and author of the study Troubling Signs for South African Democracy Under the ANC.
Last month, the Central Bank was able to reverse a deeper plunge in the value of the pound, which briefly traded at more than 300 to the dollar, by selling off dollars at a deep discount to banks, said Steve H. Hanke, a professor of applied economics at Johns Hopkins University who studies troubled currencies.
They will study the troubles in five states and emerge with proposals that could help solve those states' epic fiscal messes.
In the analysis in the present study the "Trouble with the locomotive organs" and "Questionnaire about neck and shoulder trouble" sections were chosen.
The study raises troubling questions about the management practices of the oversight groups.
Mr. Reed added that the study raises troubling questions in the event that the American presence in Iraq drags on and new emergencies arise.
Correction: November 21, 2001, Wednesday An article on Nov. 10 about covenant marriage, a form of agreement that makes divorce harder, misstated a finding of a study of troubled marriages.
Students in a 2010 Cornell study had trouble completing modest tasks, like tracking a dot on a screen with a cursor, while listening to a tape of a one-sided conversation, even though they knew the conversation was the focus of the study.
