The phrase "a valid relationship" is correct and usable in written English.
It can be used when discussing the legitimacy or acceptability of a relationship, whether in a personal, professional, or theoretical context.
Example: "In order to ensure a successful partnership, both parties must establish a valid relationship based on trust and communication."
Alternatives: "a legitimate relationship" or "an acceptable relationship".
We have been given a formula for a "valid" relationship: it must combine sexual and platonic love.
Despite these, the magnitude of the observed associations is strongly suggestive of a valid relationship.
To the best of my understanding, this is a valid relationship and as such, quite a useful observation.
However, the analyses of KM plotter displayed a valid relationship between C1orf63 and RFS (relapse free survival)/OS (P < 0.001; P = 0.007).
The turnover model herein provided a valid relationship between Ep concentration and plasma glucose and lactate levels, as these metabolic responses are dependent on stimulation of glycogenolysis via the activation of β2-adrenergic receptors [ 32].
The present study failed to confirm a valid relationship between the expert's ratings of pain and the Doloplus-2 scores in a sample of 73 cognitively impaired patients, even though the inter-rater reliability of the Doloplus-2 seemed to be satisfactory.
the studies indicate that a generally valid relationship can be given which describes the flow characteristic within this parameter field.
Fletcher and Bartlow thereupon filed an action in Chicago in 2013 against Doig, his legal team, and VeneKlasen, demanding millions of dollars owing to "tortious interference" in "a valid business relationship".
For example, iRLPFC activation has been reported when pairs of words are compared for a valid analogical relationship (Bunge et al. 2005; Wendelken et al. 2008).
It is also important to determine the valid relationship between the cause of the problem and the recording measurement.
That being the case, there is no method to establish any kind of valid relationship between two particulars which could allow us to draw any sound inferences from single-instantiated cases.
