"moderate relationship" is correct and usable in written English.
For example, you could use it in a sentence such as: "The survey results revealed a moderate relationship between the two variables."
There was a moderate relationship between hand BMD measurements and radiologic scores.
The survey identified three distinct, views in the population: preferences for no relationship, a moderate relationship and a strong relationship between Islam and the state.
A strong relationship was determined between depth of interaction and engagement duration, and a moderate relationship was found between depth of interaction and spatial ability.
A moderate relationship between basal area increment and disease severity was found, indicating decreasing basal area increment with increasing disease severity.
In addition, there was a significant positive and moderate relationship between overall meta-cognitive strategies with overall performance in the course (r = .390, p < 0.05).
The GQS appears to be a reliable method because of the relatively low coefficients of variation (ranging from 14.1 to 22.4%) for CH4 emissions and a moderate relationship (coefficient of determination = 0.42) between CH4 emissions and DMI.
We investigated the depth discharge relationship at HWC and found a moderate relationship between depth and drip discharge lag (response) times to soil moisture content, but only weak relationships between depth and mean and maximum discharge.
Phenotypic, genetic and environmental correlations were generally of similar magnitude, and indicated a moderate relationship between traits for vocalisation and locomotion, with no significant associations between traits for vocalisation and proximity to the observer.
Meanwhile, the hypothesis of the study showed that there is a moderate relationship between the level of application of TEAL and the understanding of students in enhancing their creativity and innovativeness.
There was a strong relationship between initial success/failure and eventual outcome using both assessment methods, and a moderate relationship between success categorization using the different methods (r = .43).43
Manns and colleagues [28] revealed a significant moderate relationship between scores on the PADS and V̇O2 max (r = 0.45).
