__________ are better at identifying effective strategies for solving the types of problems

_________ is the most common form of child maltreatment

A) physical abuse B) sexual abuse C) neglect

A psychologist is investigating the study behavior of college students. She writes a list that includes the following: underlining versus not underlining, studying in a quiet room versus studying in a noisy room

and studying alone versus studying with a group of students. Which term best describes the items on this list? a) control variables b) dependent variables c) extraneous variables d) independent variables