The phrase "a reliable reflection" is correct and usable in written English.
It can be used when discussing something that accurately represents or mirrors a particular situation, opinion, or condition.
Example: "The survey results provide a reliable reflection of the community's needs and concerns."
Alternatives: "an accurate representation" or "a trustworthy depiction."
Yet, if grades are not a reliable reflection of learning and reflect other factors including language proficiency, cultural background, or skills in test taking this would seem a deeply biased practice.
Is the Mastercard spend index a reliable reflection of tourism expenditures?
Such dispersal has for some time been considered to provide a reliable reflection of actual movements of human groups.
With its distortion of reality, television may be a fun-house mirror, but it has also proved to be a reliable reflection of certain cultural verities.
However, due to the noisy features and nonlinear distribution of the data samples, the affinity graph constructed directly from the original feature space is not necessarily a reliable reflection of the intrinsic manifold of the data samples.
Pyramid selling Rolling out the rollback A sweet rice pudding Reprints Related items GM crops: Trade trouble aheadJan 13th 2005The farmers' normal practice is to examine their crop frequently and apply insecticide when they think it necessary, rather than sticking to a pre-arranged schedule, so the amount of insecticide used is a reliable reflection of the crop's natural insect resistance.
Volatile profiling assessed by PTR-MS combined with a chewing device may give a more reliable reflection of real flavour perception during eating than the GC-MS measurements on frozen samples.
The generation of new models that enable delineation of important signalling pathways in CCA, and others that emulate important CCA risk factors (such as PSC), will provide a more reliable reflection of CCA pathology and allow us to better predict the effects of new interventions.
From this you may infer that parents make arbitrary and capricious decisions about how much spending money is sufficient, or that an annual survey about pocket money is not an entirely reliable reflection of reality, or both.
Assessment of cortisol in saliva is a widely accepted and frequently employed method and is considered a valid and reliable reflection of the respective unbound hormone in blood [ 45].
Reflections from the infrared beam from eyeglass lenses and frames may interfere with obtaining a reliable corneal reflection; loss of eye movement data can result.
