The undergraduate STEM education literature has made remarkable strides in recent years, but the methods commonly used to estimate the impact of instructional interventions lead to troubling questions about whether these treatment effects really are due to the interventions.
After the latest letter, Senator Dianne Feinstein, another judiciary committee Democrat and a consistent ally of the security agencies, said she found Comey's intervention "even more troubling".
While polls were still open on Thursday, the American blogger Matt Drudge had made his own helpful intervention, foretelling a troubling hotbed of extremism that even had its own scary, Muslim-y nickname.
It described a condition that's going to get significantly worse without intervention -- with troubling symptoms already apparent.
There is a growing body of literature demonstrating that interventions for these troubling symptoms are effective [ 3, 4].
The first troubling result yesterday was that the intervention helped increase the euro's value only briefly.
This study has the potential to develop a low-cost, self-care intervention for the most troubling of late-term effects in breast cancer populations, fatigue.
His education policies have focused more on test scores than on interventions to improve the troubling family situations that hold back so many low-income students.
More troubling were stories that involved untested cancer treatments or unproven interventions for children with learning or behavioural problems.
A military intervention Perhaps the most likely scenario – but also the most troubling.
