What type of data is more difficult to verify and is often based on judgment?

Subjective data is often more difficult to verify because it is based on personal opinions, interpretations, feelings, and judgments rather than objective measurements or factual reporting. This type of data can vary greatly between individuals, as each person's perspective and experience can influence their perceptions and conclusions. In contrast, quantitative data relies on numerical values and measurements that can be independently verified, while objective data is grounded in observable facts, reducing the subjectivity involved in its assessment. Comparative data involves assessing differences or similarities between sets of data but does not inherently include the subjective elements that make verification challenging. Therefore, subjective data is characterized by its reliance on personal judgment and the inherent difficulties in confirming its accuracy or consistency.