"Critical appraisal is the process of assessing and interpreting evidence, by systematically considering its validity, results and relevance to your own context."
Source: Critical Appraisals Skills Programme (CASP) glossary
There are a number of critical appraisal checklists that have been developed by different organizations to help readers appraise the quality of an article.
“Predatory journals and publishers are entities that prioritize self-interest at the expense of scholarship and are characterized by false or misleading information, deviation from best editorial and publication practices, a lack of transparency, and/or the use of aggressive and indiscriminate solicitation practices.” (Grudniewicz et.al. 2019).