Question: the first experimental laboratory in psychology in the united states was founded by
[{'answer': 'George Trumbull Ladd', 'provenance': [{'wikipedia_id': '364299', 'title': 'Experimental psychology', 'start_paragraph_id': 17, 'start_character': 11, 'end_paragraph_id': 17, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::History.:Early experimental psychology.:Würzburg School.\n'}]}, {'provenance': [{'wikipedia_id': '364299', 'title': 'Experimental psychology', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 532, 'bleu_score': 0.9738505480425671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2769597546615746696}, 'section': 'Section::::History.:Early experimental psychology.:George Trumbull Ladd.\n'}]}]