Other than Predatory journals list or availability of journal in known indexing services is there any measures for researchers to find quality journals .
The best known is the journal impact factor. For a given year, the impact factor is the average number of citations received by articles published in the journal in the two preceding years. It follows from this that a very new journal will not have an impact factor until it has been in existence at least two years. The impact factor will also vary from year to year reflecting the impact its articles have on the field, as measured by the average number of citations.
Thus, the impact factor of a journal can be seen as a broad measure of the quality/reliability of the information contained in a certain journal from the perspective of its readers (i.e. educated academics and researchers in that particular field).
One problem is that the relative quality of journals is hard to compare across different fields with different publication/ citation cultures. In some fields an impact factor of say 4 would be considered very good, whereas in a different field, the top journals may have an impact factor of less than 2.
An alternative is to use the quartile rankings given in Thomson Reuters' Journal Citation Reports. There you can compare journals within a certain academic field, which are classified as Q1 (the most cited) through Q4 (the least cited). That tends to overcome the difficulty of the difference between fields.
I would say that a Quartile 1 journal should definitely be thought of as a high quality journal and many Q2 journals would be as well.
Thank you Jon M Watts for your detailed and informative information. sir impact factors is one valid and easy methods to determine journal quality. but its only applicable for those journals which are included in Thomson Reuters' Journal Citation Reports. it wont applicable to other journals which are not included in Thomson Reuters.
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