Final answer:
It is difficult to evaluate an offender rehabilitation program without a clear theoretical basis because it lacks a framework for understanding its effectiveness and measuring outcomes.
Step-by-step explanation:
When evaluating an offender rehabilitation program, it is difficult to assess its effectiveness if it does not have a clear theoretical basis. A theoretical basis provides a framework for understanding how and why the program is expected to work. Without this foundation, it becomes challenging to measure the program's outcomes and determine if it meets its goals. For example, a program without a clear theoretical basis may lack a defined methodology, making it challenging to track progress and evaluate impact. Additionally, a program without a theoretical basis may not align with evidence-based practices, diminishing its potential efficacy