When an experiment produces null results
A) it is possible that the experimenter did not use a valid manipulation of the independent variable.
B) it shows that the independent variable manipulation produced a change in the dependent variable.
C) it shows that the dependent variable had no effect on the independent variable.
D) it is possible that the effect of the independent variable occurred by chance.

Question

Quizplus · Accepted Answer

Null results in an experiment suggest that the manipulation of the independent variable may not have been effective or valid, rather than indicating a causal relationship or chance occurrence between the independent and dependent variables.

When an Experiment Produces Null Results