Refer to Exhibit 10-11. Was the experimenter correct in reporting that the treatment had no significant effect? Would a more powerful test have lead to a different conclusion?
a. internal validity
c. construct validity
b. external validity.
d. statistical conclusion validity
Question 2
The relationship between internal and external validity in research can best be described as
a. If an experiment lacks external validity, it cannot have internal validity.
b. If an experiment lacks internal validity, it cannot have external validity.
c. Internal and external validity are independent of each other.
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