The correct answer is C.

Choice A is incorrect. Conversion and addition is indeed a method used for aggregating qualitative data. This method involves converting the qualitative data into numerical form and then adding it up to get a total score or value.

Choice B is incorrect. Categorization is also a common method used in the aggregation of qualitative data. It involves grouping similar types of data together into categories, which can then be analyzed collectively.

Choice D is incorrect. Worst-case reporting, while not as commonly used as the other methods, can still be considered a form of aggregating qualitative data. This approach focuses on identifying and presenting the worst possible outcomes or scenarios based on the available data.

Things to Remember

• Qualitative data: Data that is descriptive and non-numeric in nature, often obtained through interviews, observations, or open-ended survey questions.
• Quantitative data: Data that is numerical and can be quantified, often obtained through structured surveys, experiments, or measurements.
• Data aggregation: The process of combining and summarizing data from multiple sources or variables to provide a more comprehensive view or analysis.
• Weighting: Assigning different levels of importance or influence to different data points or variables when aggregating data.
• Scenario analysis: A technique used to analyze possible future events by considering multiple scenarios or outcomes based on different assumptions.