1 The Impact Factor and self citation trend of German journals indexed in the JCR (2000-2005)

Edition of the Journal Citation Reports (JCR) were analysed. The study showed that the portion of German journals entering material to the JCR data bank in 2005 counted 4%. From a total number of 6,088 journals in the JCR, 427 (7%) were published in Germany. The 6,088 journals in the JCR produced 847,114 articles, 50,276 (6%) appeared in the German journals. Of the 22,353,992 citations in 2005, 861,190 (4%) came from German journals. Analysis of data showed that there is a correlation between total-citation and Impact Factors of German journals indexed in the JCR. 32.9 % of all total-citation by German journals in the JCR in 2005 belong to the 7 % of journals with IF> 3, and 67.1 % of total-citation belong to 93 % of journals with IF< 3. From a total number of 433 German journals in 2000 indexed in the JCR, 91 % of all population has self-citation rate from 1 % to 79%, and from all 427 German journals 96 % of all population in 2005 has self-citation rate from 1 % to 72%. The study further showed that the self-citation rates of all German journals in 2000 as well as in 2005 stayed at 12%. The number of total citation and self-citation in 2005 with compare to the same set of journals in 2000 ha