The phrase "consistent pattern" means that something happens repeatedly or in a similar way over a period of time. It shows a predictable and regular occurrence. Full definition
Looking at these data across all the elementary and middle schools that had test results for at least one grade in 2007, one finds a fairly consistent pattern of improvement. (educationnext.org)
Another is to look for consistent patterns in the outcomes associated with a given policy across many different nations and time periods. (educationnext.org)
The following insights occur as consistent patterns across successful leaders and multiple industries. (inc.com)