Both raised a serious question about the validity of a sexual harassment charge.

He doesn't have to fight with you about the validity of his own experience.

It is in fact a question about the scientific validity of the enterprise.

Questions about the validity of federal income taxes were neither presented to nor decided by the Court.

"We are still cautiously optimistic about the validity of the organization."

By doing so, however, it has to be open to debate about the validity of its interpretation.

This debate is not about the validity of the death penalty.

Questions were later raised about the validity of the procedure.

But there could be no doubt about the validity of that impression.

I had questions about the validity of this instructional medium.