Dr. Hendrix aims to study whether attending Montessori preschool (i.e., a special type of preschool) causes an elevated overall high school GPA. Dr. Joplin is interested in the relationship between attending Montessori preschool and overall high school GPA. Using only the information provided, it is MOST likely that Dr. Hendrix will conduct a(n) _____ study and Dr. Joplin will conduct a(n) _____ study. Question 1 options: a) correlational; correlational b) experimental; correlational c) experimental; experimental d) correlational; experimental