Roughly __________ U.S. schoolchildren stay home from school each day because they are afraid of being bullied

LSD is a drug that

A) Timothy Leary advocated. B) causes delusions and bizarre behaviors. C) Cary Grant used as part of therapy. D) is a fungus derivative. E) all of these.

Piaget’s concrete operations are systematic mental rules or procedures that are irreversible

Indicate whether this statement is true or false.