Which method is most appropriate for collecting qualitative data to evaluate a training session?

The method of asking participants for their opinions on a feedback form is particularly appropriate for collecting qualitative data when evaluating a training session because it allows for open-ended responses. This approach provides participants with the opportunity to express their thoughts, feelings, and experiences in their own words, capturing the nuances and depth of their perspectives. Unlike structured methods, such as Likert scales or tests, which restrict responses to predefined options, this method encourages more expansive feedback that can reveal insights about the effectiveness of the training session, areas for improvement, and participants' overall satisfaction.

Furthermore, qualitative data collection through feedback forms can help identify themes and trends in participant responses that quantitative measures may overlook. This is critical for understanding the subjective impact of the training on the participants, thus offering richer information that can lead to informed decisions for future training sessions.