The phrase "a prior study conducted" is correct and usable in written English.
It can be used when referring to a study that was completed before the current discussion or research.
Example: "According to a prior study conducted by Smith et al., the results indicate a significant correlation between the variables."
Alternatives: "a previous study carried out" or "an earlier study performed".
A prior study conducted by the authors had investigated the behaviour of thin composite double lap joint repairs.
A prior study conducted by the authors had investigated the mechanical enhancement of clay aerogel composites; this paper is an extension to the previous study and focuses on the physical properties of clay aerogel composites.
Designed and conducted experiments in the DiVE exploring how people perceive graph networks in 3D layouts in relation to a prior study conducted on 2D layouts.
These findings replicate a prior study conducted using the same Natural condition [12].
A prior study conducted in Nepal reported poor utilization of TB treatment and diagnostic services among war affected populations.
In a prior study conducted by this group, we determined whether it was possible to detect clinically useful outcome predictors using signal detection analysis.
The current study reviewed all prior studies conducted on family home movies of infants who would be later diagnosed with autism spectrum disorder (ASD).
Furthermore, the prior study conducted MRI at a single centre only, yielding no conclusions for multicentre trials.
Only one prior study conducted by Chang et al. discussed the relationship between teicoplanin MICs and clinical outcome of patients with teicoplanin-treated MRSA bacteremia [ 14].
In a series of prior studies, conducted by an unrelated group at the University of Manheim, the psychologist Marc-André Reinhard and his colleagues found that the ability of student judges to detect deception improved drastically if they were given time to think — but only if, in that time frame, they thought about something other than the case they were judging.
A number of prior studies, conducted on interface signs focused on the importance of sign ontology [12, 13].
