The Ten Category System that attempts to measure all the verbal interactions in the classroom was developed by:

Correct option is D

The Ten Category System, developed by Ned A. Flanders, is a tool used to measure verbal interactions in the classroom, specifically focusing on teacher and student behaviors. It divides classroom verbal interactions into categories to observe and evaluate communication patterns between teachers and students. This system is widely used in educational research to understand teaching methods and classroom dynamics.

Information Booster:

1. Ned A. Flanders: Known for developing the Flanders Interaction Analysis system, which categorizes classroom verbal interactions into 10 distinct categories.

2. The Ten Category System helps teachers and researchers analyze the amount of teacher talk versus student talk, and the nature of those interactions, in an organized way.

3. It is used to improve teaching methods by providing a quantitative approach to studying classroom interactions, making it easier to identify areas where teachers may need support or development.

4. The categories range from teacher-centered actions like lectures to student-centered interactions like responses and questions.

Additional Information:

• B.F. Skinner was a psychologist known for his work in behaviorism, particularly operant conditioning, but he did not develop the Ten Category System.

• Israel Scheffler is a philosopher of education but is not connected to this specific system of interaction analysis.