The phrase "a relatively restricted range" is correct and usable in written English.
It can be used to describe a limited scope or variety of something, often in contexts like research, analysis, or discussions about options.
Example: "The study focused on a relatively restricted range of variables, which may limit the generalizability of the findings."
Alternatives: "a somewhat limited range" or "a fairly narrow scope."
The birds live in a relatively restricted range of scrub oak forests in the Florida peninsula--a habitat that is rapidly losing ground to housing developments and amusement parks.
Our sediment samples have a relatively restricted range of ɛNd values but a wide range in 87Sr/86Sr values, which we consider to reflect the influence of chemical weathering in changing the original bedrock composition.
Peptide immunogens composed of multiple copies of the same sequence should elicit a relatively restricted range of Abs focused on the related epitopes presented by the MCP.
The authors themselves argue that their study may have suffered from a relatively restricted range of temperament and limited power to detect interactions.
This is probably due to the increasing variability in both the GA-VAS and these other measures those patients who responded to treatment achieved better scores on measures of anxiety and psychosocial functioning, which increased the overall variability in these measures and reduced the relatively restricted range present at screening and baseline.
In birds, mammals, and insects, the frequency distribution of range sizes tends to be unimodal and right-skewed (i.e., most species have relatively restricted ranges)[6], [7].
Moreover, resonant frequency is not expected to vary too much in a realistic regime where membrane potentials do not fluctuate slowly and with large amplitude but rather abruptly and in relatively restricted ranges under heavy network bombardment (Destexhe et al. 2003).
On the negative side, Michelson interferometers have a relatively restricted wavelength range and require use of prefilters which restrict transmittance.
First, the present study investigated a relatively restricted age range, focusing on middle-aged and older participants.
Madagascar is the world's fourth-largest island, but it is still a relatively restricted space.
Compared to past works, the "London Pictures" have a relatively restricted palette: tabloid black and white, highlighted with blood red.
