This suggests that results derived from one trial might be applied prospectively in analysis of subsequent similar trials.

Specifically, the "Electronic and Information Technology Accessibility Standards: Economic Assessment," states that "The standards are to be applied prospectively and do not require Federal agencies to retrofit existing electronic and information technology.

Proponents of the decision like Rae T. Vann of Equal Employment Advisory Council stated that the decision was a "sensible and straightforward ruling" and "Congress intended the Pregnancy Discrimination Act to be applied prospectively, not retroactively."

Power calculations (the power of a study of a given size to detect a particular difference) were applied prospectively to quantify the size of study required to detect a change of 40% with a power of 90% (vide supra).

Mr. Nager asked the Court to rule that unless Congress explicitly provided for retroactive application of a new law, the law could be applied only prospectively.

Analytic frameworks are developed that can be applied prospectively to guide practice; frameworks are tested and refined in collaboration with practitioners delivering programs in country settings.

He held that, in exceptional cases, it would be open to the court to hold that a new interpretation of the law should only be applied prospectively.

The standards are to be applied prospectively and do not require Federal agencies to retrofit existing electronic and information technology.