session 1b_10s_10r - 1 bandit, 10 sliders, 10 rounds session_1b_50s_10r - 1 bandit, 50 sliders, 10 rounds session_2b_10s_10r - 2 bandits, 10 sliders, 10 rounds session_3b_50s_1r - 3 bandits, 50 sliders, 1 round session_3b_50s_10r - 3 bandits, 50 sliders, 10 rounds