Just as in much of theory formation, the scientist starts with a conjecture and thoroughly tests it for its validity, so in evolutionary biology the scientist constructs a historical narrative, which is then tested for its explanatory value".
The population-balance equation was tested for its validity by applying it to two special cases: constant collision-rate function and orthokinetic aggregation of monosized particles.
The questionnaire was tested for its validity before using it in the study.
This power is unique; absolute, in that no limits of time or competence can be placed upon it; and self-subsisting, in that it does not depend for its validity on the consent of the subject.
The SF12 as an outcome measure was chosen for its validity and practicality, yet it has been shown to yield less precise scores than the original SF36 outcome measure.
The EQ-5D score is a qualified and well recognized health outcome measure in patients who receive THR: it has been tested for its validity, reliability, and responsiveness in relation to the SF-36, SF-6D, WOMAC, and Oxford Hip Score [ 9, 26].
However, it is not clear that pluralists can account for its validity by relying on the standard characterization of validity as necessary truth preservation from premises to conclusion.
It commands solid majorities in most of the developed world, and, thanks to the overwhelming evidence for its validity, has the near-unanimous support of scientists everywhere.
Second, the Rorschach has also been criticised for its validity.
Both models were tested for its validity at 12 °C.
or, equivalently, (3.12). is a necessary condition for its validity as (because and, ).
