You have a strong sense of self-efficacy and your friend has a low sense of self-efficacy. You have the same GPA in school. Your friend is therefore more likely to do better than you in school in the future

Tucker is in second grade and is having trouble. He is frequently out of his seat, looking at the work of other students and annoying them by making comments. He interrupts the teacher, blurts out answers before she finishes the question, and usually needs directions repeated multiple times. At home, his mother says he is always "on the go." The most likely diagnosis for Tucker is __________.

A. conduct disorder B. oppositional defiant disorder C. separation anxiety disorder D. attention-deficit/hyperactivity disorder

Which of the following is the simplest or most basic measure of variability?

a. median b. average deviation c. standard deviation d. range