In the United States, about _______ of children between ages 4 and 10 are diagnosed with ADHD

In Piaget's theory, the stage of cognitive development between 6 and 11 years of age, in which an individual becomes capable of logical thought processes but is not yet capable of abstract thinking, is the __________ stage

a) concrete operations b) sensorimotor c) preoperational d) formal operations

According to social facilitation theories, people's thoughts, feelings, and behaviors can be affected by the(a) ________

A) presence of others B) presence of attractive others C) presence of higher-status others D) time limit on a social interaction E) sudden presence of a stranger