Your friend tells you that she plans to conduct an experiment that is more complex than is
necessary just to impress her instructor. What should you tell her and why?
A) She has a bad idea based on the principle of parsimony.
B) She has a good idea because it will help avoid confounding.
C) She has a good idea based on the principle of parsimony.
D) She has a bad idea because it will result in confounding.
Question 2
This threat to internal validity refers to problems in how groups were formed such that the
groups are not equal before the experiment.
A) selection B) maturation C) testing D) history
An electron micrograph from an experiment demonstrating the function of a tight junction
Pavlov’s Salivary Conditioning Experiment (1 of 2)
Structure of complex II (succinate dehydrogenase)
Monkey Experiment: Sense of Fairness
Summary of the Hershey–Chase experiment demonstrating that DNA, and not protein
The Lederberg–Zinder experiment using Salmonella