Which method is least effective for tracking verbal operant progress?

The method that is least effective for tracking verbal operant progress is anecdotal notes without analysis. This approach involves recording observations about a learner's behavior or communication without applying a structured framework or analysis to interpret those observations. While anecdotal notes can provide some insight into a learner's progress, they often lack the rigor and specificity needed to accurately measure a learner's verbal operant skills over time.

In contrast, systematic data collection provides a structured way to gather quantitative data that can be analyzed for trends and patterns. Regular assessments yield more formal evaluations of a learner's skills, allowing for comparisons over time. Benchmark testing, similarly, offers standardized measures that can guide instruction and track progress within a defined framework. Overall, the lack of analysis in anecdotal notes makes them a less reliable method for effectively tracking and understanding verbal operant progress compared to other more structured and detailed approaches.