Sentence examples for make valid comparisons from inspiring English sources

In 1973, a starting point for the department to make valid comparisons over time, the figure was 54.

We believe that multi-institutional trials should be designed in order to obtain prospective benchmark data from which to make valid comparisons of outcome.

The national insurance plans and other carriers must be subject to identical standards, they say, or consumers cannot make valid comparisons.

To make valid comparisons later in the experiment, they needed as much information as possible about the normal levels of cholesterol, fats, glucose and countless other trace elements in my blood.

One could make valid comparisons between the current general resurgence in Soviet cinema and the advent of the nihilistic film noir era in American filmmaking when censorship ended immediately after World War II.

In the places where such measurements have been tried on a limited basis, there has been fierce debate over the methods used to make valid comparisons, and hospitals have tended to lobby against the efforts from start to finish, for fear that they will appear near the bottom of the lists.

Though it is difficult to make valid comparison owing to few numbers of mosquitoes with RS genotype from DDT and pyrethroid bioassays, the homozygous resistant genotype (RR) seemed to confer higher resistance than the heterozygous (RS) against pyrethroids but not to DDT.

It is conceivable that without controlling for ovulation, it would be difficult to make valid comparison in hormone levels between exposed and unexposed individuals.

Again, however, there are grave difficulties in the way of making valid comparisons.

A wide variety of outcome measures were used, making valid comparisons between treatment outcomes difficult.

Among the languages that have been classified as Sino-Tibetan, a great many are known only from word lists or have not yet been described in a way that makes valid comparisons possible.