Q1 represents the "first quartile", indicating the top 25% of a particular subject area. These evaluations are typically updated on an annual basis and follow a three or four year cycle, meaning that journals are evaluated based on their performance over the past three or four years. Q1 Rating is based on several elements.
Various organizations rate academic journals, and the university administration has established a standard whereby a journal will be recognized as Q1 only if it receives a Q1 rating from all three of the following rating groups:
Q1 denotes the top 25% of the Impact factor distribution
Q2 denotes middle high Position (between 25%-50% of the Impact factor distribution)
Q3 denotes middle low position (between 50%-75% of the Impact factor distribution)
Q4 denotes the lowest position (bottom 25% of the Impact factor distribution)
Find the Q1 through Scimago contain following steps,
To determine a journal's ranking in Scopus, follow these steps:
Note that Scopus denotes a journal's quartile based on percentiles. Specifically, percentiles 100 to 70 are considered Q1, 74 to 50 are considered Q2, and so on..