Ideally, there should be only one of these reasons for rejection:
1. The quality of the paper is unsufficient (with respect to content, or language, or formal requirements).
2. The topic of the paper is out of the scope of the journal.
3. There is a limit of the number of papers published by the journal (due to capacity problems or to guarantee a very high reputation of the journal), so that only the very best papers will be accepted if the number of submitted papers is higher than the limit.
In answering this question, it is necessary to answer some journal-specific and research article-specific questions.
Questions to be answered depending on the journal:
- Is the research appropriate for the purpose and scope of the journal?
-Does the research meet the journal's (quantitative) acceptance requirements? Does it consist of words within the number of words specified by the journal?
- Does the research meet the qualifications specified by the journal (academic language, accuracy, clarity)?
- Does the research contribute to the field by providing a new perspective?
Questions to be answered depending on the Research Article:
-Does the title of the research fully describe the research?
-Is the rationale and purpose of the research sufficiently explained? Has a comprehensive literature review been conducted, and have deficiencies been identified?
-Are the variables that make up the research context clearly stated and explained?
-Is the theoretical basis or foundations of the research clear?
-Is the methodology sufficient to realize the purpose of the research?
- Is there an Ethics Committee Certificate for the research article?
-Is the population and sample of the research article clear?
- Are the research processes explained in the research article?
- Is the research article clear about validity and reliability in quantitative studies, credibility in qualitative studies, and the role of the researcher?
-Are the data collection tools used appropriate for the research?
-Is it explained why the data collection tool should be used?
-If used, is the scale, etc., justified why that scale was used?
-Is the analysis phase of the research sufficiently clear?
-Are the findings explained in the research article?
-Do the conclusions and recommendations coincide with the findings of the research article?
-Are the contributions of the research article to the field listed in items?
I look for answers to these questions while writing articles and refereeing. In other words, I use these questions like a checklist.