local_examination_disburse_activity_host_rewards

local_examination_disburse_activity_host_rewards = {
	involved_activity = {
		add_activity_log_entry = {
			key = imperial_examination_host_rewards
			score = 100
			tags = { completed }
			show_in_conclusion = yes
			character = scope:host
			location = scope:host.location

			scope:host = {
				#Influence based on your... setup
				change_influence = {
					value = local_examination_influence_base_reward_value
					#Lots of entrants
					if = {
						limit = { scope:activity = { activity_has_imperial_exams_trigger = yes } }
						multiply = 4
					}
					#Smaller amount of entrants
					else_if = {
						limit = { scope:activity = { activity_has_grand_exams_trigger = yes } }
						multiply = 2
					}
				}

				if = {
					limit = { has_legitimacy = yes }
					#Legitimacy (for those who have it)
					add_legitimacy = {
						value = local_examination_legitimacy_base_reward_value
						#Extreme Grade
						if = {
							limit = { scope:activity = { activity_has_extreme_grade_trigger = yes } }
							multiply = 2
						}
						#High Grade is the default, as it were, so no post for that case
						#Mediocre Grade
						else_if = {
							limit = { scope:activity = { activity_has_mediocre_grade_trigger = yes } }
							multiply = 0.8
						}
						#Low Grade
						else = {
							limit = { scope:activity = { activity_has_low_grade_trigger = yes } }
							multiply = 0.5
						}
					}
				}
				else = {
					# Merit for the rest
					change_merit = {
						value = local_examination_legitimacy_base_reward_value
						#Extreme Grade
						if = {
							limit = { scope:activity = { activity_has_extreme_grade_trigger = yes } }
							multiply = 2
						}
						#High Grade is the default, as it were, so no post for that case
						#Mediocre Grade
						else_if = {
							limit = { scope:activity = { activity_has_mediocre_grade_trigger = yes } }
							multiply = 0.8
						}
						#Low Grade
						else = {
							limit = { scope:activity = { activity_has_low_grade_trigger = yes } }
							multiply = 0.5
						}
					}
				}

				#Prestige
				add_prestige = {
					value = local_examination_prestige_base_reward_value
					#Extreme Grade
					if = {
						limit = { scope:activity = { activity_has_extreme_grade_trigger = yes } }
						multiply = 4
					}
					#High Grade
					else_if = {
						limit = { scope:activity = { activity_has_high_grade_trigger = yes } }
						multiply = 2
					}
					#Mediocre Grade 
					#Low Grade
					else = {
						limit = { scope:activity = { activity_has_low_grade_trigger = yes } }
						multiply = 0.8
					}
				}
			}
		}
	}
	pam_vows_of_poverty_host_completion_piety_effect = yes
}

As written in game/common/scripted_effects/tgp_imperial_examination_scripted_effects.txt.