Possible missed verb in the sentence

Question

I wonder if the word "credibility" highlighted in bold below should follow a verb like "lent" or "gave".

My understanding of the sentence as it is is that researchers should "attend to credibility to experienced clinicians", which doesn't make a lot of sense.

Here is the original text extracted from The Art and Science of Psychotherapy.

It suggests that RCTs could be used in far more effective ways if researchers attended to aspects of experimental design and credibility to experienced clinicians such as using scientifically appropriate control conditions (most importantly, clinicians in the community attempting to do their best work) and patient samples resembling those seen in the community seeking treatment for the kinds of problems that lead most patients to present for treatment.

Answer 1

This is a comment which is too big ...

The Sentence is too long with much ambiguity. That is in addition to the missing word(s) near credibility and elsewhere ...

Here is "One Possible Parsing" , with embedded editorial comments :

It suggests that RCTs could be used in far more effective ways if researchers attended to "aspects of (A) experimental design and (B) credibility to [[change this "to" to "among"]] experienced clinicians" such as [[ by ]] using (1) scientifically appropriate control conditions (most importantly, clinicians in the community attempting to do their best work) and [[ by using ]] (2) patient samples resembling those seen in the community seeking treatment for the kinds of problems that lead most patients to present for treatment.

Here is "One More Possible Parsing" , with embedded editorial comments :

It suggests that RCTs could be used in far more effective ways if researchers (A) attended to aspects of experimental design and (B) [[ gave ]] credibility to experienced clinicians such as [[ change this "such as" to "by" ]] using (1) scientifically appropriate control conditions (most importantly, clinicians in the community attempting to do their best work) and [[ by using ]] (2) patient samples resembling those seen in the community seeking treatment for the kinds of problems that lead most patients to present for treatment.

Sentence is too complicated and ambiguous.
Even with grammatical corrections, the meaning may be hard to Parse.
Better to rewrite in shorter unambiguous sentences.