Encouragement by spectators is a ……? A) Social incentive B) Reward incentive C) Monetary incentive D) Social competitive incentive Related MCQs: The related facts or observations which are grouped into classes or categories are known as? What is the population that psychologists usually study? Which law of learning is also called the law of use and disuse? The incidence of dementia in 65 to 80 years old is approximately …….and ……. respectively?