But the true effects on both the "chosen" and the "rejected" child take time to emerge, with turbulent results.
Ultimately it will take several more election cycles to work out the true effects of these changes.
Medical experts will testify before the committee in order to help members and the public understand the true effects of the substances".
It used sham surgery as a comparison, a controversial and rarely used strategy but one that researchers felt was necessary to understand the true effects of the operation.
"It happens every day, and it's really scary, and it's sad," she said, explaining that the true effects didn't hit until four or five years later.
For many analysts, the true effects of Sept. 11, and of the overall economic downturn, will not be visible for a couple of months.
Isn't it more likely that the "true" effects of estrogen will become known only if this group of women is monitored over many years?
On the other, it was claimed that the program was masking the true effects of the US budget deficit, and that interest rates would soar after it ended.
A disadvantage of real data is that the true effects of the contributing variables are unknown.
Present methods are incapable of assuring that the best patients are included in trials and that the true effects of assigned treatments are consistently captured.
In other words, I can examine the true effects of the enforcement of the HPL because this situation is deemed a natural experiment.
