A Retained Null Hypothesis Might Legitimately Be Interpreted as a Lack

Multiple Choice

A retained null hypothesis might legitimately be interpreted as a lack of relationship between variables when

A) one has studied a small population and all members have been included.
B) the researcher can show that the study is free of any internal validity problems.
C) the study had sufficient power to reject the null hypothesis with a relatively small effect size.
D) All of these are true.