Here is a short list of sources of writing help available to UC Berkeley students, staff, and faculty:
Predatory journals often lack an appropriate peer-review process and frequently are not indexed, yet authors are required to pay an article processing charge. The lack of quality control, the inability to effectively disseminate research and the lack of transparency compromise the trustworthiness of articles published in these journals.
A recent systematic review of checklists to determine whether a journal is predatory found no checklist to be optimal. They recommended you look for a checklist that:
They noted that only one checklist out of the 93 assessed fulfills the above criteria.
You may wish to review the Principles of Transparency and Best Practice in Scholarly Publishing from the World Association of Medical Editors
And, please also be aware of the Institutionalized Racism of Scholarly Publishing:
Through Web of Science
The journal impact factor is a calculation of how many citations the articles in a journal receive (over a 2-year average). It is used as a proxy measure of the quality of a journal. If the impact factor of a journal is 5, then on average, articles in this journal receive about five citations within the first two years after publication.
In any discussion of journal, article, or author metrics, it is imperative to remember Goodhart's law:
"When a measure becomes a target, it ceases to be a good measure"
» Journal Citation Reports: Find impact factors (Note: Journal websites generally will include the impact factor)
» Scopus CiteScore metrics: Click “Sources" - An alternative to the JIF
You may wish to read this brief article on the Journal Impact Factor:
Is the impact factor the only game in town?. P. Smart. Ann R Coll Surg Engl. 2015;97(6):405-8.
PLoS, a top-tier open access suite of journals, says this: "PLOS does not consider Impact Factor to be a reliable or useful metric to assess the performance of individual articles. PLOS supports DORA – the San Francisco Declaration on Research Assessment – and does not promote our journal Impact Factors"
In addition, citation counts themselves are not necessarily a good metric of importance; see How citation distortions create unfounded authority: analysis of a citation network. Greenberg SA. BMJ. 2009 Jul 20;339:b2680. doi: 10.1136/bmj.b2680.