Are stratification and broad statements outside an evaluator's knowledge allowed?

Stratification and broad statements outside an evaluator's knowledge are prohibited because they can lead to conclusions that lack validity and reliability. Proper evaluation requires that all assertions be firmly grounded in evidence derived from the evaluator's expertise and the data at hand. When evaluators stray from their area of knowledge and make broad or unsupported statements, it undermines the integrity of the evaluation process. This prohibition ensures that evaluations are objective, accurate, and based on substantiated information, which is crucial for effective decision-making and accountability in educational contexts.