After a sociologist has achieved the generalization goal of science, the next goal is to

The answer is predict
In sociology, predictions is the process of using the data/variables that already established as facts in order to form a certain hypothesis or future interactions that might happen between each variables.
Example of prediction:
- We know that A has higher base intelligence than subject B
- We already established as a rule that base intelligence will enhance one's learning capability
- We predict that subject A will be able to understand a new concept faster than subject B.

River arrow on this map is pointing

It all depends on the individual