In ________ samples, the population to which researchers can safely generalize is determined by the characteristics of the sample.
A) random
B) post hoc
C) ad hoc
D) stratified random
Fill in the blank with the correct answer.
Question 2
A sample cannot be randomly drawn if it is comprised of
A) animals.
B) human participants.
C) volunteer participants.
D) people from a subpopulation.