The sixth place finisher of a marathon finished in a time of 156 minutes. The number 156 in this example represents ______ measurement

Piaget termed the cognitive stage from age 7 to 11 the stage of concrete operations. During this stage children become capable of ____

a. object permanence b. thinking abstractly and hypothetically c. using mental operations d. examining the world scientifically

In children, the symptoms of mania may be close to those of

A) separation anxiety disorder. B) attachment disorder. C) attention deficit hyperactivity disorder. D) explosive personality disorder.