Ensuring experimental control is often more difficult in research on thinking and problem solving because
a. between-subjects designs are often used.
b. experiments in this area are often more complicated than experiments in other areas of psychology.
c. there are many extraneous variables that might influence performance.
d. all of these.
Question 2
A researcher knows that there is a relationship between obesity and watching television for young children. However, it is not known whether children watch more TV because they are overweight, or whether they are overweight because they watch so much TV. This is an example of the third-variable problem.
a. True
b. False
Indicate whether the statement is true or false
Summary of greenhouse experimental design and results
A sod house in North Dakota, 1896. Individual “bricks” of sod were hewn from the ground and stacked
Negative feedback control of a regulated variable.
A typical evaporative emission control system. Note that when the computer turns on the canister ...
Biological control pits one organism against another
Problem