Dr Gustaf Is Known for His Research in Romantic Partnerships

Multiple Choice

Dr. Gustaf is known for his research in romantic partnerships and physical attractiveness. He recently decided to develop a new research study in which he has couples in different stages of their relationships (just met, recently dating, long-term relationship, newly engaged, newly married, married for more than five years, married for more than 10 years) monitor how physically attracted they are to their partner after implementation of different relationship assignments. Each participant couple is studied through these relationship levels. Dr. Gustaf's research would best be addressed by using which type of design?

A) pretest-posttest design
B) mixed model design
C) mixed factorial design
D) repeated-measures design