The phrase "also tested the relationship" is correct and usable in written English.
It can be used when discussing research or experiments that involve examining the connection or correlation between two or more variables.
Example: "In addition to the initial findings, the researchers also tested the relationship between sleep quality and academic performance."
Alternatives: "further examined the connection" or "additionally analyzed the correlation".
We also tested the relationship between grazing impacts and herbivore density at the scale of deer management units on the site.
We also tested the relationship between timing of epidemic onset and latitude, which gave more ambiguous results.
We also tested the relationship between age and moral reasoning in control subjects without university education and found no correlations.
We also tested the relationship between gender and DIT-2 scores, as literature showed that women tend to score higher than men [18].
In addition, we also tested the relationship between Rhizaria and excavates by evaluating all possible trees in which these two groups are monophyletic.
We also tested the relationship between amplification of this region and clinical features.
We also tested the orthologous relationship between eukaryotic iGluR prokaryotic iGluR by the "reciprocal-best-hits" criterion (data not shown).
We also tested the nonlinear relationship between tea consumption and cancer risk by modeling tea consumption levels by using restricted cubic splines with 3 knots at fixed percentiles (10%, 50%, and 90%) of the distribution as described by Larsson and Orsini [ 36, 37].
Finally, we also tested the hypothesis that the relationship between alter sleep and ego drug use is mediated by the spread of drug use, rather than sleep.
We also tested the difference in the relationship of plot α-diversity to habitat-specific γ-diversity between the Alps and the Scandes by comparing the slope coefficients of plot α-diversity against habitat-specific γ-diversity in both areas.
However, we also directly tested the relationship between pathology and prognosis to examine the need for molecular information.
