Question: who is considered the father of modern behaviorism
[{'answer': 'John B. Watson', 'provenance': [{'wikipedia_id': '540801', 'title': 'Behaviorism', 'start_paragraph_id': 3, 'start_character': 48, 'end_paragraph_id': 3, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '540801', 'title': 'Behaviorism', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1816199795743644379}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '540801', 'title': 'Behaviorism', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 785, 'bleu_score': 0.9356203564789121, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1816199795743644379}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '540801', 'title': 'Behaviorism', 'section': 'Section::::Abstract.', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['During the first half of the twentieth century, John B. Watson devised methodological behaviorism, which rejected introspective methods and sought to understand behavior by only measuring observable behaviors and events.', 'During the first half of the twentieth century, John B. Watson devised methodological behaviorism, which rejected introspective methods and sought to understand behavior by only measuring observable behaviors and events. It was not until the 1930s that B. F. Skinner suggested that private eventsincluding thoughts and feelingsshould be subjected to the same controlling variables as observable behavior, which became the basis for his philosophy called "radical behaviorism.', 'During the first half of the twentieth century, John B. Watson devised methodological behaviorism, which rejected introspective methods and sought to understand behavior by only measuring observable behaviors and events. It was not until the 1930s that B. F. Skinner suggested that private eventsincluding thoughts and feelingsshould be subjected to the same controlling variables as observable behavior, which became the basis for his philosophy called "radical behaviorism." While Watson and Ivan Pavlov investigated the stimulus-response procedures of classical conditioning, Skinner assessed the controlling nature of consequences and also its potential effect on the antecedents (or discriminative stimuli) that emits behavior; the technique became known as operant conditioning.']}}]}]