Genetic causes are at the root of ____ of cases of autism

How does the jigsaw classroom operate?

a. Students compete to win a top award. b. Students are each given a piece of information that must be shared to solve a problem. c. Students are told that one student holds the key to solving a problem and they must find out who it is. d. Students are all given separate puzzles to solve. e. Students are "locked" in a room together and must work together to figure out how to "escape."

Olga's parents are warm, reasonably demanding, and committed to the value of education. It is most likely that Olga

A) will choose friends who have a positive attitude toward school and achievement. B) will rebel by slacking off on schoolwork. C) will become deeply anxious about possibly failing. D) All of the above are equally likely.