Suppose a Researcher Wishes to Study the Relationship Between a High-Protein

Multiple Choice

Suppose a researcher wishes to study the relationship between a high-protein diet and school performance. She asks students to record their eating habits for a week and compares their protein consumption to their grade point average in school. If she finds that students who eat more protein generally get better grades, it would be appropriate to conclude that she has identified a:

A) positive correlation
B) negative correlation
C) causal relationship
D) "zero order" correlation