Validity
A) is something that cannot be achieved.
B) refers to how well a measure or study performs.
C) is a separate statistical measure used by natural scientists.
D) is a way of including extraneous variables to give the study more meaning.
Question 2
General control procedures can be implemented in research
A) only in low-constraint research designs.
B) only in high-constraint research designs.
C) only in experimental research designs.
D) at many different levels of constraint.