Which test design technique is not a black box technique?

Statement coverage is a white box test design technique, as it focuses on the internal structure and logic of the software being tested. This technique requires an understanding of the code and aims to ensure that each statement in the code is executed at least once during testing. It does not consider the software's external behaviors or functionalities, which is the primary focus of black box techniques.

In contrast, techniques like equivalence partitioning, state transition testing, and boundary value analysis are all categorized as black box techniques because they are concerned with the input and output of the software rather than the internal code structure. They focus on validating the software's functionality based solely on its specifications and requirements, making them effective for testing the software from an end-user perspective.