In an experimental design _____, whereas in a correlational design _____.
a. there is only one variable (the independent variable); there are two variables (X and Y)
b. there are two X variables; there are an X and a Y variable
c. researchers assign each person an X score and then measure the score on the Y variable; researchers measure scores on variables that a participant has already experienced
d. researchers measure scores on variables that a participant has already experienced; researchers assign each person an X score and then measure the score on the Y variable
Question 2
What does a correlation coefficient do?
a. It allows us to draw conclusions about whether one variable causes another variable.
b. It creates a correlational design, rather than an experimental design.
c. It quantifies the pattern in a relationship.
d. It summarizes the X scores and the Y scores separately.
Each experimental organism used in cell biology has advantages for certain types
Experimental demonstration of membrane fluidity
The experimental system that permits observation of rotation in the F1 component of F1F0 ATP (c)
Modern house door design
Experimental deforestation of the Hubbard Brook watershed
Directional artificial selection favoring the AdhF allele in experimental Drosophila populations.