| Two threads in the literature raise important questions about their validity. |
| Yet this must surely raise questions over the validity of the prize itself. |
| Will his violation raise questions about the validity of his case for a spot in the Hall of Fame some day? |
| However, the question of the validity of soft dollars was not a debatable matter until recently. |
| Such questions of moral validity, he continues, are best left in the domain of religion. |
| While scientists may well query the value of this kind of concept, I am sure that many social scientists will query its entire validity. |
