The phrase "a valid procedure" is correct and usable in written English.
You can use it when referring to a method or process that is acceptable, legitimate, or recognized as appropriate in a particular context.
Example: "Before we proceed with the experiment, we need to ensure that we are following a valid procedure to obtain accurate results."
Alternatives: "an acceptable method" or "a legitimate process."
Then, both energy and stress criteria are combined to provide a valid procedure to predict the transverse crack evolution.
Using the xylose disappearance as a measure for determining the residence time is a valid procedure as it was established beyond any doubt that the xylose disappearance rate is not affected by loss reactions to be discussed later.
This would be a valid procedure if it is assumed that there is no effect of location/stand edge on stem volume.
After the set of parameters is fixed, a valid procedure should lead to results that coincide qualitatively with known from other methods, at least for a well-known object like daytime Pc3 pulsations.
As an example, (Stansfield and Hansen's 1983, pp. 29, 31) review of relevant literature concludes that cloze is a valid procedure because cloze tests in different studies have correlated highly with other lengthy measures of second language proficiency.
The method of intra-articular injections of platelet-rich plasma (PRP) to patients with persistent pain related to severe temporomandibular joint dysfunction described by Pihut et al. [88] seems to be a valid procedure for decreasing TMD pain.
A certified reference material (CRM) is an RM characterized by a metrologically valid procedure for one or more specified properties accompanied by a certificate that provides the value of the specified property, the associated uncertainty and a statement of metrological traceability.
We also sought to create a new, valid procedure for establishing placebo alcohol believability.
Although (9) is derived using similar principles to Kullback's and Leibler's information divergence [ 26], a similarity exploited below, it is not obvious why integrating the logarithm of (8) over the posterior parameter estimates is a statistically valid procedure.
It can be assumed that the results obtained by several laboratories should be more reliable then indicative information about the contents of the oxides calculated for the second group, although Corning archeological reference glasses are not characterized by a metrologically valid procedure.
For general repeated measures designs the Wald-type statistic (WTS) is an asymptotically valid procedure allowing for unequal covariance matrices and possibly non-normal multivariate observations.
