This chart shows the experimental design of four students who are all observing what kind of bird seed birds tend to eat
more often
Student 1 Student 2 Student 3 Student 4
- Performed the - Repeated the - Repeated the - Repeated the
experiment experiment 5 experiment 2 experiment 5
once
times
times
mes
- Used the same - Used the same - Used the same - Used the same
area. same time area, different area, different area. same time
of day, and time of day, and time of day, and of day, and
same amount of different amount different amount same amount of
seeds
of seeds of seeds
seeds
Which student is the most likely to have reproducible results?
Student 1
Student 2
Student 3
Student 4