Skip to content
Early access — you're among the first to try PYQLabs. Share feedback
UGC NET 2020DecemberMorningQ13MCQanswer pendingexplanation sooneasy
Research · Research Methods
Back to ResearchPreviousNext question
  1. A.
  2. B.
  3. C.
  4. D.
Official answer key is not available for this question yet.
causal relationshipvariablescontrolexperimental research
Next question · 2020 Q14