Answer:
B. He would have collected fewer types of data.
Step-by-step explanation:
If Dr. LaGuardia had instead been intereted in conducting a small-N design, he would have collected fewer types of data.
The difference between a small N and a large N design is that in small-N, each person is treated as a separate experiment, thus a smaller sample size can be used. while data in large-n is represented as group averages and small-n is reported as individual-level data