The nurse is critiquing a research study that used an experimental design. How can the nurse determine if the study's results are able to infer causality?
A) The relationship between independent and dependent variables must be reciprocal.
B) The relationship between independent and dependent variables must not be explainable by any other variable.
C) Both independent and dependent variables should be characterized by reactive effects.
D) Both independent and dependent variables should change as a result of the treatment.

Question

Quizplus · Accepted Answer

To infer causality in an experimental design, it's crucial that the relationship between the independent (cause) and dependent (effect) variables is not explainable by any other variable. This ensures that any observed changes in the dependent variable can be directly attributed to manipulations of the independent variable, ruling out alternative explanations.

The Nurse Is Critiquing a Research Study That Used an Experimental