No probability value may ever be less than

Aaron Beck developed what is considered the finest psychometric instrument for use in assessing

a) conversion disorders. b) depression. c) obsessive-compulsive disorders. d) schizophrenia.

One change in crowd membership that occurs between early and late adolescence is that

A) crowds become more distinct in later adolescence. B) adolescents place increasingly more importance in membership in crowds. C) membership in some crowds, such as "studious" becomes particularly less stable. D) crowd membership becomes less rigid, making it less difficult for adolescents to change crowds.