If you are concerned with being able to generalize a result from one of your experiments to a larger population, then you are worried about
A) statistical conclusion validity.
B) construct validity.
C) internal validity.
D) external validity.
Question 2
You do an experiment in a mental institution to determine the effects of two types of therapy. All of the patients classified as having paranoid schizophrenia are used and you flip a coin to determine which type of therapy they will receive. You measure length of hospital stay for each group. Which alternative below is a control variable?
A) type of therapy
B) length of stay
C) classification of disorder
D) flipping a coin
Variation in climatic conditions result in geographic variation in the distribution of biome types a
During confrontations with others, the mane makes the lion look larger.
A melanistic jaguar at the Henry Doorly Zoo. Melanism is the result of a dominant allele and remains
Glaucoma. (a) A buildup of pressure within the eye cavities, often caused by a blockage of vessels t
Notice the small motor gear on the left drives a larger plastic gear (black), which then drives ...
Experiments that showed DNA to be the genetic substance