The phrase "a combination of valid" is correct and usable in written English.
It can be used when discussing elements that are valid and are being combined in some way, such as in arguments, data, or concepts.
Example: "The results of the experiment were a combination of valid hypotheses and accurate measurements."
Alternatives: "a mix of valid" or "an amalgamation of valid".
The questionnaire developed for the Y-PATH study was a combination of well-known, valid, and reliable self-report measures.
Although a combination of factors determined a valid sample, the parameters of the sampling templates were the primary constraint on the data collected from the image plane; other features of the simulation e.g., the speed and trajectory of objects, the length of time an object took to travel through the frustum affected the data only indirectly.
A combination of recommended self-report valid and reliable outcome questionnaires [ 42] detailed below, and objective measurement will be used at baseline and follow-up (3, 6 and 12 months).
A combination of recommended self-report valid and reliable outcome questionnaires [ 45] that measure sleep quality, functional disability, pain, quality of life, physical activity, psychosocial and work loss variables, as well as objective measures of sleep quality will be completed at baseline, 3 month (face to face) and 6 month (postal) follow-up.
We present design practices for creating resource-oriented interfaces, driven by an interaction protocol built on the combination of valid linkages to enhance resource integration, accompanied by associated recommendations for implementation.
The highest match rate was achieved using the combination of valid NHS numbers, DRL and PRL at the 50% threshold.
We term such a combination of m packets' SNRs as a valid m-wise combination.
The 108 gene signature was considered most valid, by a combination of ROC and SOD criteria.
Performance evaluation typically involves a combination of measures, which are comprehensible, clear, valid, reliable, reproducible, discriminative and easy to use.
The idea that a combination of such features could characterize a valid robust cluster is appealing and was extensively used to prune many of the less informative clusters (Rappoport et al., 2013).
