Influencing factors. The if score of a paper refers to the influencing factors of a paper published in a journal. The if of a journal B is 6, and the if score of papers published in a journal B is 6. Although every journal can get the if score through the formula of if, in fact, only when publishing sci papers and ssci papers will the if score be concerned, while publishing other journals, such as ei papers and cscd papers, often does not require the if score. However, if score can be used as a reference standard when selecting journals.