"has it been evaluated" is correct and usable in written English.
You can use it to ask about whether a situation has been examined and a decision or opinion has been reached. For example, "Has it been evaluated whether this plan is feasible?".
Furthermore, no research has yet been undertaken to evaluate the effectiveness of peer support for patients with both type 2 diabetes and cardiac conditions, nor has it been evaluated in different contexts (hospital and community).
However, the content validity of the RDQ has not been established, nor has it been evaluated in patient populations with a partial response to PPI, whose symptom pattern may differ from those with complete response or no response.
Once it's established that a site has significance, it is evaluated for seven different aspects of integrity, meaning can the site still convey the reasons why it is significant.
After the ground truth dictionary has been created, it is evaluated using precision and recall against traditional methods for finding disease and term co-occurrence.
After the GPs' performance had been videotaped, it was evaluated by two blinded observers using a checklist to score the presence of key features of the EAP.
Delta Air Lines has said it is "evaluating various options" regarding its economy seats.
The agency has said it is evaluating ways to expand that program to enroll more low-risk travelers.
The White House has said it was evaluating the "utility" of the Putin meetings.
Despite its novelty, it has been evaluated by more RCTs than has any other biophysical test of fetal growth or well-being.
The role of proteases in these processes has been previously discussed [ 13]; however, it has been evaluated in cellular monolayers and not directly in the target tissue.
It has been evaluated many times and each evaluation is very positive and has found no serious negative aspects.
