Question: a cohen's d of –0.19 is what type of effect size
[{'answer': 'Small', 'provenance': [{'wikipedia_id': '437276', 'title': 'Effect size', 'start_paragraph_id': 2, 'start_character': 295, 'end_paragraph_id': 2, 'end_character': 300, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]