methodology human 90 Research Design 85 Humans 80 article 34 adult 26 male 25 Article 24 female 23 controlled study 19 Male 18 Female 17 procedures 14 Adult 13 Computer Simulation 10 computer simulation 10 aged 9 algorithm 9 human experiment 9 psychology 9 randomized controlled trial (topic) 9 simulation 9 Aged 8 Young Adult 8 major clinical study 8 statistical model 8 decision making 7 genetics 7 information processing 7 medical research 7