Professor Sanders wants to study how constant distractions during an exam affect student performance. She randomly assigns her students to different classrooms where the experimental group will receive a predetermined number of distractions while taking an exam. In this study, the independent variable is the and the dependent variable is the .

Dr. lin, who is a developmental psychologist, believes that human development results from the dynamic interaction between developing persons and their surrounding society. dr. lin believes that culture is not something external that impinges on developing persons but is integral to their development every day via the social context. dr. lin is most likely working within the perspective.