Internal validity is
a. the extent to which the results of an experiment can be attributed to the manipulation of the dependent variable, rather than to some confounding variable.
b. the extent to which the results of an experiment can be attributed to the manipulation of the independent variable, rather than to some confounding variable.
c. the extent to which the results of an experiment can be generalized.
d. both b and c.
Question 2
A researcher would like to examine the political attitudes for students at a local university. The researcher will evaluate a sample of 200 students but would like to be sure that the ages and genders of individuals in the sample accurately represent the ages and genders for the entire student body at the university. What would be the best sampling method for the researcher to use?
a. simple random sampling
b. stratified random sampling
c. proportionate stratified random sampling
d. systematic sampling
Results are shown for proteins denatured by two different environmental changes
External and internal positions.
Are the resutls from the glucose strip test consistent with the results obtained from the ...
National Results of the Scholastic Assessment Test (SAT)
A Possible Problem with the Anger and Concentration Experiment
he Luria-Delbriick Experiment Demonstrating Are Spontaneous