When we are not sure that the obtained result of an experimental study is really attributable to our manipulation of the independent variable, we are questioning the __________ of the study.
a. generalizability
b. external validity
c. internal validity
d. correlational nature
Question 2
A major advantage of within-group experimental designs is that they
a. require fewer participants than between-groups designs.
b. are more valid than between-groups designs.
c. allow for higher numbers of participants than between-groups designs.
d. are more flexible than between-groups designs.
Loewi's experimental discovery of chemical neurotransmission.
This graphic illustrates the original systems model of politics advanced by David Easton. Politics
Sperry’s classic study of eye rotation and regeneration.
The experimental system that permits observation of rotation in the F1 component of F1F0 ATP (c)
The Prison Study
Harvard Alumni Study show who are more physically active in middle adulthood